Progress Solar/Wind SLT 700 Series User manual

1 | Page
Progress SolarTM & Solar/WindTM Light Tower
Operator Manual
(SLT 700 to 1400 Series)
(SLTW 700 to 1400 Series)
Progress SolarTM & Solar/WindTM Light Tower
Operator Manual
w. ProgressSolarSolutions.com [e-mail] p. 919.363.3738 1108 N New Hope Rd, Raleigh, NC 27610

2 | Page
Operator’s Manual Page #
Table of contents ..........................................................................................................2
Introduction ...................................................................................................................3
Safety Alert Symbols ....................................................................................................4
Safety Information......................................................................................................4-6
Serial & Model Number Locations................................................................................6
Specifications & Dimensions ....................................................................................7-8
Components .............................................................................................................9-13
Inspection Checklist ...................................................................................................14
Operating Instructions ...........................................................................................15-22
Maintenance ...........................................................................................................23-24
Warranty ......................................................................................................................25
Manufacturer Certification Label Example ................................................................26
APPENDICES –
Appendix A – Troubleshooting Guide
Appendix B – Victron Battery Monitor Manual
Appendix C – TRISTAR MPPT Manual
Table of Contents

3 | Page
Do not attempt to operate this unit without reading and understanding the Operator’s
Manual.
It is imperative that any person using, operating or working on the mobile unit reads
and studies the Operation Manual carefully. Information included in the manual instructs
the user how to operate and maintain the unit safely.
This Manual contains current specifications and is subject to change without notice.
Read the manual thoroughly before using the unit. If you are unclear of any of the
information, please contact the factory or your local dealer before continued use.
Make this information available to all who may use or will be working around the Progress
Solar (SLT) or Progress Solar/Wind (SLT(W)) Light Towers to ensure a safe working
environment and a properly maintained system.
WARNING: Although the unit once understood is very easy to use and maintain,
improper use can cause permanent damage to the unit or harm to a person. For
example, the batteries must have access to sunlight or other source to charge batteries
during long duration storage or regular use. If the batteries are allowed to completely
discharge and not immediately recharged, they will be permanently damaged and unable
to function at their full potential. The batteries are the most expensive single component
to replace and must all be replaced at the same time.
Note:
This version of the manual is current as of date published. The manual may be updated
as needed.
To request a hard copy of this manual or a subcomponent manual, e-mail our Parts and
Service email at [e-mail] with your VIN number and a detail
request. System component operator instructions may be available if moreinformation is
required.
Progress Solar Light Tower Basic Set-Up Video
You Tube Link: https://www.youtube.com/@progresssolarsolutions
Every SLT/SLTW unit has a QR code located inside or near the Control Box. If the operator
has a Smart Phone with camera they can scan and view the same videowhile standing in
front of the unit. This does not replace reading and understanding the operators manual.
Introduction

4 | Page
DANGER WARNING CAUTION
Alert symbols are located where danger is present, a warning is necessary or cautionary
measures need to be taken. Be aware of these symbols and follow advised safety
instructions to avoid harm to yourself, others or the unit. The following symbols identify the
level of exposure to the operator of the unit.
DANGER: INDICATES HAZARD, UNSAFE ACTION OR PROCEDURE WILL CAUSE
SERIOUS INJURY OR DEATH.
WARNING: INDICATES HAZARD, UNSAFE ACTION OR PROCEDURE
COULD POSSIBLY CAUSE SERIOUS INJURY OR DEATH.
CAUTION: INDICATES HAZARD, UNSAFE ACTION OR PROCEDURE COULD
POSSIBLY RESULT IN INJURY OR DAMAGES TO PROPERTY.
•DO NOT OPERATE THE SLT OR SLT(W) MOBILE UNIT WITHOUT READING
THE OPERATOR MANUAL AND SAFETY INSTRUCTIONS.
•DO NOT USE THE SLT OR SLT(W) DURING ELECTRICAL STORMS OR
DURING LIGHTING
•DO NOT USE THE SLT OR SLT(W) DURING EXTREMELY HIGH WINDS
•ALWAYS TURN OFF ALL ELECTRICAL BREAKERS PRIOR TO SERVICING
ORMAINTENANCE OF ANY ELECTRICAL COMPONENTS
DO NOT OPERATE THIS UNIT WHILE UNDER THE INFLUENCE OF
MEDICATION, FATIGUE, ILLNESS, ALCOHOL OR DRUGS.
CHECK FOR LOOSE BOLTS, CONNECTIONS AND OTHER LOOSENED
MATERIAL BEFORE TRANSPORTING OR USING THE UNIT.
Safety Information
General Safety
WARNING:
CAUTION:

5 | Page
BEWARE OF TRAFFIC HAZARDS; STAND CLEAR OF TRAFFIC WHEN
POSITIONING THE UNIT ROAD SIDE. SECURE ALL FASTENERS ON TRAILER
BEFORE MOBILE UNIT IS IN TRANSIT. RETRACT MAST AND ALL
OUTRIGGERS, STOW / LOCK IN CORRECT POSITION BEFORE TRANSIT.
NEVER CLIMB ON TOP OF THE MAIN HOUSING UNIT.
MAKE SURE UNIT IS LEVEL BEFORE ERECTING THE LIGHT TOWER. EXTEND
ALL OUTRIGGERS BEFORE TOWER IS ERECTED AND KEEP OUTRIGGERS
EXTENDED THE ENTIRE TIME THE TOWER IS ERECTED.
NEVER ATTACH ANYTHING TO THE LIGHT TOWER MAST.
KEEP AREA CLEAR WHILE RAISING OR LOWERING THE LIGHT TOWER.
A SUPPLEMENTAL GROUNDING ROD, CAN BE USED WHERE POSSIBLE. THIS
MAY REDUCE CHANCE OF PERSONAL INJURY DUE TO STRAY CURRENT.
THIS SAFETY DEVICE CAN HELP PREVENT ELECTRIC SHOCK WHILE IN
CONTACT WITH UNIT. USER IS RESPONSIBLE TO COMPLY WITH ALL
NATIONAL, STATE AND LOCAL CODES FOR GROUNDING ROD USAGE.
Note:
This unit should only be operated by qualified and trained personnel.
Replace safety and instruction decals when they become difficult to read.
Unauthorized modifications to the unit or removal of manufacturers labeling will void
the warranty and may be unsafe and any accident resulting from unauthorized
modifications will not be the responsibility of the manufacturer.
Always store equipment properly when not in use.
Fix damage to unit and replace any broken parts immediately.
DO NOT ATTEMPT TO CHARGE A FROZEN BATTERY. ALLOW BATTERY TO
WARM TO 60°F (16°C) BEFORE CHARGING TO AVOID EXPLOSION AND
SERIOUS INJURY TO BODY OR PROPERTY.
WEAR SAFETY GLASSES WHEN WORKING WITH BATTERIES.
ALLOW FOR VENTILATION. DO NOT BLOCK VENTS ON UNIT.
Battery Safety
WARNING: BATTERIES CONTAIN EXPLOSIVE GASSES. SHIELD EYES.
EXPLOSIVE GASSES CAN CAUSE BLINDNESS OR INJURY. SPARKS, FLAMES
OR LIT CIGARETTES SHOULD BE KEPT AWAY FROM BATTERIES. SULFURIC
ACID WITHIN THE BATTERY CAN CAUSE BLINDNESS. IF AN ACCIDENT OCCURS
FLUSH EYES WITH WATER AND SEEK MEDICAL ASSISTANCE. DO NOT CHARGE
BATTERIES WITHOUT PROPER INSTRUCTION.NOTE: THE ABOVE WARNING IS
BASED PRIMARILY ON FLOODED BATTERIES, ALL PROGRESS SOLAR UNITS
USE AGM SEALED BATTERIES BUT THE PRECUTIONS MAY STILL BE RELEVANT
IF CASE IS PIERCED.

6 | Page
MAKE SURE ALL CONNECTIONS ARE TIGHT. DO NOT OVER-TIGHTEN
CONNECTION ON THE BATTERY TO DETER DAMAGE TO TERMINALS OR
BATTERY CASE.
DO NOT LEAVE THE BATTERY ON A TRICKLE CHARGER FOR MORE THAN
48 HOURS.
BATTERIES SHOULD BE KEPT CLEAN AND FREE FROM ANY CORROSION.
USE A CORROSION DETERRENT SPRAY ON THE BATTERY TERMINALS TO
ENSURE LONGER LIFE.
IT IS CRITICAL THAT THE MPPT CHARGE CONTROLLER BE USED TO HELP
REGULATE THE BATTERY FROM OVER AND/OR UNDERCHARGING. IF NOT
THIS WILL SIGNIFICANTLY REDUCE THE LIFE OF THE BATTERIES.
CHARGE CONTROLLERS CAN NOT GET WET
•ALWAYS KEEP CONTROLLERS DRY AND COVERED FROM ELEMENTS. CLOSE
DOORS WHEN NOT ACCESSING ANY INTERNAL COMPONENTS.
SOLAR PANEL OR BATTERY REMOVAL / INSTALLATION SEQUENCE
SOLAR PANELS MUST BE DISCONNECTED FROM THE CONTROLLER FIRST,
BEFORE ANY WORK CAN BE DONE ON THE CONTROLLER OR BATTERIES.
Serial Number (VIN#) and Model numbers are attached on the lower portion of the front
or back of the unit.
Controller Safety
Serial Number & Model Number Locations

7 | Page
SOLAR, WIND & AC POWER GENERATORS & STORAGE
Power Generation – Solar & Wind Power w/ Critical Elements to Maximize
Power
o Two monocrystalline solar arrays housed on two solar wings. Each solar
array is made up of one or multiple solar modules x 2 solar arrays
o The 2 adjustable solar wings use actuators to raise, lower and stabilize the 2
solar wings mounted on each side of the unit at angles required to function
on each side. When deployed, these angles allow operators to optimize
solar wings to any geographic area latitude from eitherside of the unit; and
for travel, position both solar wings out of harm’s way.
o The high wind stabilization package includes 4 Progress Solar Tele-Struts™
to secure the solar wings and the 5 outriggers/jacks stabilize the unit during
high wind.
o Each solar wing housed on each side of unit facing out and hingedat the
top. This minimizes any potential damage in the transit (travel position)
while maximizing solar exposure (optimal latitude) in the deployedposition
from either side of the unit. The hinge height on the solar wings specifically
prevents shade from any adjacent vehicles or equipment. If your unit has
additional foldout hinges on the sides (SLT1000, 1200, 2800) then you
when stored you must unfold the wings to allow all panels to be exposed to
sunlight to get effective charging. Positioning solar arrays at optimal
latitude and eliminating shade over the unit are critical for
performance and prevent permanent damage to batteries.
o The Optional Wind Turbine adds additional power up to 200W at speeds
greater than 7mph. This helps power the unit 24hrs/day especiallywhen
sun is down and in inclement weather.
Power Storage & Backup AC Charger
o 24 Volt DC deep-cycle, battery bank comprised of AGM (sealed, no
maintenance) batteries (most units); 800aH (>/=780-830aH) (optional
1200aH) capacityof battery bank.
o For Backup AC Charging Power – U.S. 110-120VAC/20amp (ex U.S. 220-
240VAC/20amp), 50/60Hz dual AC rapid-charger capable of charging up to
40aH to 24VDC battery bank using generator or any other standard 20amp
commercial electrical source. Lights can be operated while batteries are
being charged
o Battery State-Of-Charge Meter – Incremental display of battery charge
o 50 ft, 20amp electrical cord to use with AC battery charger
Standard Features & Specifications
Progress Solar™ & Solar/Wind™ Light Tower (Towable)
SLT and SLT(W) Series

8 | Page
Multi-stage light tower that can expand from ~8’ to 23’ (standard size).
Wind turbine must be housed on same mast assembly and extends ~2’ above
lights
Photocell – Activates lights in darkness when turned on
Automated Light Timer / Charge Control Module
o Light Timer(s) to enable automated, timed interval (optional photo-sensor) or
manual lighting start/stop times (independent from solar panels)
o Maximum Power Point Tracking (MPPT) charge controller(s) to
maximize solar power gained and to prevent over or under charging of
batteries. Performance data from the charge controllers can be
downloaded. Low Voltage disconnect is used to protect batteries.
o Breakers to protect service personnel, solar wings, lights and electrical
systems
o Temperature controlled cooling fans provided
Note: LED pupil lumens (scotopic) appear brighter than (photopic) foot candle
measurements indicated when compared directly to high intensity discharge
lighting (like metal halide or high pressure sodium).
Durable, steel vented housing customized to store, protect and maximize
functionality of power generation, power storage and light tower components
Towing weight – ~1,600 to 3900lbs depending on model
High Wind Stabilization Package (5 total outriggers/jacks & 4 Tele-Struts)
Towing specifications & requirements –tongue weight - est. 120-220 lbs.
Jack on Tow Bar
Pintle lunette ring coupler OR optional 2” ball coupler
Forklift guides on most units
4 “D” rings/unit used to secure unit during transportation
Lockable battery and storage compartment within unit housing
Light Tower & Control Module
Customized Trailer & Housing

9 | Page
Solar Array
Solar Arrays consisting of Mono-Crystalline Solar
Modules housed on two Solar Wings with Electric
Actuators.
Tele-Struts
Tele-Struts - Used to stabilize solar wings during high winds, with use of
Tele-tabs and pins. Included in units that have the high-wind package.
Components

10 | Page
Control Box
Front Control Box (Top Half)
Remote Meter(s) ‘TriStar’ for MPPT
Charge Controllers to allow user to
view performance in real time.
Victron BMV – Smart Battery monitor.
Displays: voltage, amperage, ampere-
hours consumed, wattage, hours
remaining, etc. (older units may have a
red, yellow, green state of charge
meter)
Light Control Switch - Three-way switch. Set
to the left and it turns on the Timer/Manual light
control. Set to the right and the Photocell is
turned on (turns on when dark). Set switch to
the center and it turns lights off.
Light Timer(s) to automatically or manually
turn lights on/off
Light Hour Meters(s) to record actual hours of
lighting
Wind Turbine Control Switch to turn
wind power On, Neutral or Brake
(Off) (if applicable)

11 | Page
Front Control Box (lower Half)
Breaker(s) to engage or disengage electrical circuits
(up is ON, down is OFF)
Battery State-Of-Charge Meter
to enable visual real time
visualization of available power
(not shown).
Solar Wings– Use rocker
switches to automatically raise
and lower solar wings using
actuators
USB Cables to enable download
of performance data fromMPPT
Controllers to your laptop
Back side of control Box
(Within Battery Storage Area)
MPPT Charge Controller(s)
AC Charger ‘On Shore’ (Back-Up)
Power Storage Module
24VDC sealed, AGM (no maintenance), Deep-
Cycle, Rechargeable Batteries
Typically, ~800aH wired as a 24VDC system.
Other battery configurations are available.

12 | Page
Trailer & Housing
Outriggers/Jack Stands - to level unit and support the raised light
tower mast. Deploy outriggers/jacks for stability. Located at the front
(optional), rear and tongue of the trailer to provide stability while light
tower is deployed.
Tongue Jack Stand- Jack stand is used to level and
support the tongue and enable attachment /
detachment of the light tower to a vehicle for towing.
Lunette Ring or Ball Hitch - Coupler attaches trailer
to vehicle. Make sure vehicle hitch and coupler are a
match and trailer is securely attached to vehicle.
Safety Chain(s)- Safety chain attaches to vehicle
towing the trailer.
Light / Brake Quick Connects- 7 pin or 4 pin Quick connects attach
wiring oftrailer lights and brakes to towing vehicle.
D-ring Tie-Down Points- Used to secure
tower with straps / chains in order to apply
equal force to both ends of the light towers
if transported via a flat-bed truck ortrailer
while in tow. Locations vary by model.

13 | Page
Light Tower
LED Light Module / Tower / and Optional Wind Turbine
Solid-State LED Flood Lights – Each light can rotate 360
Degrees and tilt up or down
Tower:
Tower Extension Winch- This self-braking winch
extends themast to the desired height, up to ~23’ for
most models
Tower Rotation-Tower can rotate to approximately 180 degrees
using tower pivot ring to provide optimum angle for your lights

14 | Page
PREPARE FOR USE OF PROGRESS SOLAR™ or SOLAR/WIND™ LIGHT TOWER
Never put into use or deliver any unit that has been damaged or has missing decals. Replace
any safety or instructional decals that are difficult to read. Inform the end user how to safely
operate the unit as stated by the operator manual. Always include an operator manual with
the sale or use of the any series light towers for safe operation.
Check List
Inspect all areas of the unit to ensure that safety stickers and decals are present.
Inspect the light tower and mast (winches, pulley and cable systems) for proper
operation. Replace winch cables as needed if frayed, worn or damaged in any way to
insure safe operation.
Inspect the towing equipment for proper operation or damage.
Inspect the outriggers and standing jacks for correct operation.
Check light fixtures for damage and proper operation.
Inspect wiring connections to insure proper connection.
Inspect control buttons for correct operation.
Check air pressure in tires and monitor their condition.
Make sure the Operator Manual is with the equipment.
Inspect and tighten any / all loose nuts or connectors
Inspect trailer, wheels, and tires for damage.
Inspection Checklist

15 | Page
Transport & Towing
Close solar wings completely into down position tightly against the sides of the unit
before transit. Secure all latches andconnectors prior to transit.
Lower light tower down to its lowest position. It is optional but encouraged to turn
flood lights so they are pointing down and turn light bar to parallel with hitch direction
to reduce drag during towing.
Retract all jack stands and outriggers accept the tongue jack and make sure they are
properly stowed and outrigger pins locked for transit.
Position vehicle ball under trailer connector. Crank down (counter-clockwise) tongue
jack to lower trailer.
Place coupler over ball (or lunette ring if applicable) and secure the unit to towing vehicle.
Stow tongue jack to raised/locked position for transit. Lower jack by turning (counter
clock-wise) the side mounted crank. Pull lock pin out and rotate jack to the horizontal
position, parallel to trailer tongue and release lock pin. Make sure spring lock pin is
completely inserted in correct hole.
Attach safety chains and allow adequate slack (chains should not drag ground).
Attach brake and light quick connects to towing vehicle.
Check for loose debris hanging from the trailer.
Check tire air pressure and tire condition. Tighten any lug nuts that may be loose.
Make sure all lock pins (especially outriggers and jacks) are correctly inserted.
Make sure license plate is attached and current (where required).
Before getting started inspect the entire unit for loose debris or damaged parts.
Get acquainted with the safety and instructional decals located on the unit.
Operating Instructions
WARNING: MAKE SURE TRAILER HITCH AND BALL ARE CORRECT
SIZES. SECURE THE TRAILER CORRECTLY TO TOWING VEHICLE.
WARNING: FOLLOW ALL LOCAL AND STATE SPEED LIMITS AND
D.O.T LAWS WHEN TOWING A TRAILER. SLOW DOWN AND BE ESPECIALLY
CAREFUL DURING WHEN MAKING SHARP OR SUDDEN TURNS

16 | Page
Light Tower Operation
1. Read Operator’s Manual before starting.
2. Park the unit with the tow tongue facing east or west. This will allow the solar wings
on either side to be raised to face the sun (solar south in Northern Hemisphere) and
maximize solar gain as the sun rises in the east and sets in the west. It is not
necessary to readjust during the course of the day. NOTE: Smart phones typically
have a compass function to assist you in orienting solar panels to the south.
3. Disconnect the safety chains and lights from the towing vehicle.
4. Unhitch the portable solar light tower from the towing vehicle. Raise the tongue jack
(clockwise) into position (perpendicular to ground). Take out the hitch pin and
maneuver the tongue off of the towing vehicle.
5. Extend all outriggers and jack stands to level and stabilize the trailer and housing
unit before raising the tower. Use all jack stands to level the entire trailer.
6. Adjust the solar wings to face solar south which optimizes solar absorption. The sun
should hit the solar wings at a 90° angle ideally. Use the arrow keys located in the
control box at the front of the unit to adjust the angle of each solar wing to area latitude
or 35°-40° if unknown. Install tele-struts if included.
7. While the tower is in the down position, adjust (tilt, rotate) the LED flood lights
so they illuminate the desired area once the mast is raised.
8. Make sure the area around the unit is clear of any electrical lines or other
interfering items before raising the mast.
Setup
WARNING: A SUPPLEMENTAL GROUND ROD IS AN AVAILABLE DEVICE THAT CAN
REDUCE THE LIKELIHOOD OF INJURY CAUSED BY A STRAY ELECTRICAL CURRENT OR
LIGHTNING STRIKE. WE SUGGEST USING THIS PRECAUTIONARY DEVICE TO HELP PREVENT
ELECTRIC SHOCK. IT IS THE RESPONSIBILITY OF THE USER TO COMPLY WITH NATIONAL,
STATE AND LOCAL ELECTRICAL CODES THAT GOVERN THE GROUND ROD.
WARNING: OUTRIGGERS ARE TO STABILIZE THE UNIT AND NOT DESIGNED TO LIFT
THE TIRES OFF OF THE GROUND. DO NOT ATTEMPT TO MOVE THE UNIT WHILE
OUTIRIGGERS AND JACKS ARE DEPLOYED. SERIOUS DAMAGE TO THE EQUIPMENT WILL
OCCUR.
CAUTION: MOVING PARTS HAZARD: PROTECT HANDS AND LOOSE CLOTHING FROM
SOLAR WINGS WHEN CLOSING AND OPENING.

17 | Page
9. Raise the tower by cranking the hand crank to desired height.
10. Rotate mast: loosen lock screw, turn the mast in desired direction.
11. Lower the tower by cranking the hand crank in the reverse direction. Rotating mast
sideways can reduce drag on vehicle at high speeds.
Automated Light Timer Operation & Manual On/Off
The Light controls and light timer are located inside the control box. This component regulates light
times and prevents over discharging of the batteries
The Progress Solar Light Tower provides a Light Timer to operate the lights and manage power
consumption.
The Light Timers allow the user to set specific
clock times for the lights to turn on/off automatically
(unattended by operator). Multiple on/off times can
be set per night and they can vary by day of the
week if desired. Naturally any times can be used
and can change asneeded. This will automatically
turn lights on when you need it but conserve
energy by turning the lights off when they are not
needed. This is helpful year round for user
convenience, but this is also especially helpful
during the winter months when the days areshort
(less solar energy is available) and the nights are
the longest.
Examples:
•In a parking lot, you can set the Light Timers to turn on at 7pm and go off at 11pm and
then turn back on at 5am and off again at 7am.
•For a job site, you can set the Light Timers to come on at 8pm and go off at 4am Mon
through Friday if that is the work shift. Saturdays and Sundays can be set differently to
remain off if there is no work activity.
DANGER: ALWAYS MAKE SURE THE AREA ABOVE THE UNIT IS CLEAR OF TREE
BRANCHES, BUILDING OVERHANGS, POWER LINES OR ANY OTHER OBSTRUCTIONS.
CONTACT WITH SUCH OBSTRUCTIONS COULD RESULT IN PROPERTY DAMAGE, SERIOUS
INJURY OR DEATH.
WARNING: PRIOR TO RAISING THE LIGHT TOWER, MAKE SURE THE WIRING IS NOT
TANGLED. INJURY AND PROPERTY DAMAGE COULD OCCUR.
WARNING: UNDER NO CIRCUMSTANCES SHOULD THE UNIT BE MOVED WHEN THE
TOWER IS IN THE VERTICAL POSITION.

18 | Page
•For entertainment or sporting events, you can set the Light Timers to turn on the lights
from 6pm until 11pm or for whatever times fit your purpose.
If you want to start earlier than the automated timer setting, you can always manually turn
the Lights on with the Timer by pushing the manual key until the red light comes on, and
then push the key a second time to return it to automatic. The lights will turn on instantly
and the lights will turn off at the designated off time automatically.
Setting the Clock and Programming the Timer
1) Set the Clock for the current Day of the week and Time.
Press and hold CLOCK and then press DAY key, HOUR key. MIN key
respectively to adjust clock to the accurate day and time.
2) Program the Timer for desired On/Off - Days and Time settings
a) Press the TIMER key, LCD screen will show 1ON _ _. _ _ _ _
b) Press the DAY key to select any combination of 15 Daily Programs based on your
needs. Continue pressing DAY key to alternate among 15 combinations until you see
the one of interest.
1) MO
2) MO
TU
WE TH
FR
SA
SU
9) MO
10)
TU
WE
TH FR
SA SU
3)
TU
11) MO
TU
WE
TH FR
SA
4)
WE
12) MO
TU
WE
5) TH
13)
TH FR
SA
6)
FR
14) MO
WE
FR
7)
SA
15)
TU
TH
SA
8)
SU
c) Press HOUR and MIN respectively to set desired Hour and Minute setting for
your 1st On time (1ON)
d) After finished setting of 1ON , Press TIMER key again, LCD screen will show 1OFF
_ _. _ _
e) Press DAY key, repeat Programming procedure “2” to select Day-combination of
interest. Note: The Day-combination in each ON/OFF program period must be
consistent
f) Press HOUR and MIN respectively to set desired Hour and Minute setting for
your 1st OFF time (1OFF)
g) When finished setting 1ON and 1OFF, if desired, you can Press TIMER again and
repeat to set your 2nd set of ON/OFF times 2ON then 2OFF, etc. You can set up to
eight (8) ON/OFF settings per night if desired.
h) When finished program setting (event) press CLOCK (finalizes program). Timer
shall start to execute program(s).

19 | Page
3) To review programs
Press TIMER to alternate and display each setting on the LCD screen.
4) To operate, Press MANUAL to select ON, AUTO or OFF setting mode. Note a will
appear under ON, AUTO or OFF to designate current operating mode and will cycle if
you press MANUAL.
a) The manual ON and OFF temporarily override the AUTO (automatic setting that
you set in #2 above). It is recommended to set your TIMER, turn it to AUTO
(automatic) and it will operate as requested. For days that you want to override the
AUTO setting simply press MANUAL turning the light On (LED will also turn red)
and then push MANUAL one additional time to AUTO again. The light will then turn
on instantly as requested and will still turn Off at its established automatic Off time.
5) To Reset, press X on controller to clear previous settings
Note: The Light Timer uses a Lithium CR2032 battery and is within a compartment on the
back of the timer.
Battery State-of-Charge Meter Operation
The Battery State-of-Charge Meter(s) are included in
some SLT & SLTW units. The meter is located
inside the front control box. This component provides
the SLT/SLTW operator an easy-to-understand
visual display indicatingthe current battery state-of-
charge at a glance. Newer units may have the
Victron state of charge meter instead of this meter.
The operator sees the current charge levels in increments to maximize battery life, it is
best to limit your discharge rate to no lower than 30% of the capacity of the battery bank
and to fully charge the batteries on a routine basis. This charge can be achieved by either
or a combination of solar gain or with an on-board backup electric (AC) battery charger.

20 | Page
Maximum Power Point Tracking (MPPT) Controller Operation
The MPPT Controllers are located inside the control box. The component is an advanced
maximum power point tracking (MPPT) solar battery charger and load controller for stand-
alone off-grid photovoltaic (PV) systems.
This controller features a smart tracking algorithm that maximizes theenergy from the solar
module(s) and also provides load control to prevent overcharging or over-discharging of the
batteries. Each controller runs independently and each one is interconnected with a
24VDC bank of batteries, a group of 24VDC floodlights, and a user controllable timer for
the lights. The only routine interaction a user needs to have is to observe performance
characteristics andreal time status. USB cables are available in the bottom of the front
control box to enable the user to download historic performance data.
•The advantage of the MPPT technology is typically an overall increase “boost” in the
solar charge current flowing out to the battery to help them recharge faster, when
compared to other light/charge controllers.
•The battery status LEDs provide approximate battery state-of-charge indication and also
indicates when a system or load fault condition exists.
•The light tower lights are controlled automatically through the automated Light Timer(s).
See that section for operating instructions.