Ra Lights Ra Twisty Flashlight User manual

Ra Twisty™ Flashlight User's Guide
Copyright 2008 by Ra Lights
All rights reserved
September 3, 2008
Introduction
Congratulations on your purchase of the Ra Twisty Flashlight.
We believe you will find your new Ra Twisty Flashlight to be one
of the most versatile flashlights you own. Your flashlight is built
to provide you with years of reliable service when used every day.
Basic Operation
Rotate the battery compartment clockwise to increase the
brightness level. Your flashlight will sequence from Off to Low to
Medium to High.
Caution: do not continue tightening the battery compartment after
the High setting turns on as this may damage the switch
mechanism.
Rotate the battery compartment counter-clockwise to decrease the
brightness level. Your flashlight will sequence from High to
Medium to Low to Off.
Note: clockwise and counter-clockwise rotation are relative to the
head when the flashlight is pointed away from you.
Low Battery Indication
Your light will momentarily turn off and then back on to half of
the previous brightness level when the battery in your flashlight is
unable to supply enough power to run the current brightness level.
This process is repeated when needed as the battery is used up.
After this process starts, your flashlight will double-blink once a
minute to remind you that the battery needs to be changed.
Selecting a brightness level below the current brightness level will
extend the dying battery and turn off the dying battery reminder.
Your flashlight will start blinking once a second when the battery
is no longer capable of powering any of the regular brightness
levels.
Warning: continued use of a rechargeable battery after your
flashlight begins blinking once a second will result in sudden
darkness because your flashlight will eventually turn itself off to
protect the battery.
Installing the Battery
Unscrew the battery compartment from the head and remove the
old battery from the battery compartment. Insert the new battery
into the battery compartment with the positive terminal out.
Align the head and battery compartment, press them together to
overcome the spring pressure and screw the battery compartment
and head back together.
The light comes on dimly for two seconds following a battery
change to indicate it is functioning correctly. If you do not see this
indication when changing batteries, remove the battery for 60
seconds and try again.
Caution: Only install fully charged rechargeable batteries. Using
partially charged batteries may result in the batteries not being
properly recognized as rechargeable. This can lead to the
rechargeable battery being over-discharged and damaged.
Note: your flashlight protects rechargeable batteries from over-
discharge under most conditions. However, we still recommend
you use batteries with built-in over-discharge protection for an
added level of safety.
Cleaning and Maintenance
Periodically clean the flat end of the battery compartment, the
threads and O-ring with a clean lint-free cloth lightly moistened
with isopropyl alcohol. Apply a coat of non-conductive silicon or
petroleum grease to these surfaces.
Replace the O-ring if it becomes worn or damaged. The battery
compartment O-ring is: 1.5mm x 20.5mm, 70 durometer Nitrile
(Buna-N).
The recessed electrical contacts and interior threads can be
cleaned using a lint-free swab lightly moistened with isopropyl
alcohol. Recessed contacts and threads should be cleaned in a
counter-clockwise direction to prevent snagging the swab. Be sure
to remove any particles or fibers that may be left behind. Apply a

coat of non-conductive silicon or petroleum grease to the interior
threads.
The exterior can be cleaned with a mild soap and water. Rinse
well and dry with a lint-free cotton cloth.
Additional Warnings
Warning: your flashlight on the higher brightness levels is very
bright. You should avoid looking directly into the light as the light
can be intense enough to injure your eyes.
Warning: a sudden total failure is unlikely but is still possible.
We recommend you always carry a second light during critical
situations (e.g., caving). We also recommend you carry enough
spare batteries to cover your lighting requirements plus a
reasonable safety margin. It is not necessary to start each trip
with new batteries in your light as long as you have spare batteries
along.
Warning: do not recharge a rechargeable battery if you think it has
been over-discharged or otherwise damaged. Dispose of the
damaged battery immediately. An over-discharged or otherwise
damaged battery can vent or explode when the battery is
recharged or when the battery is subsequently used.
Warning: water – especially salt water – in the battery
compartment will cause electrolysis giving off hydrogen and
oxygen – an explosive gas mixture. Electrolysis will also cause
corrosion. If water gets inside of the battery compartment,
immediately open the battery compartment, rinse the battery
compartment and battery with fresh water and dry.
Contact Us
Ra Lights (HDS Systems, Inc. dba Ra Lights)
P.O. Box 42767
Tucson, Arizona 85733
USA
520-325-3004
www.RaLights.com
[e-mail]
Warranty
Your Ra Twisty flashlight (Product) is warranted to be free from
defects in materials and workmanship for the life of Product to
the original owner. This warranty does not include cosmetic
blemishes, damage, modifications and normal wear. We will
repair Product, replace Product with an equivalent Product or
refund the original purchase price for the defective Product - at
our discretion. You are solely responsible for determining the
Product's suitability for your application and you take sole
responsibility for Product's use. In no case shall we be liable for
more than the original purchase price of Product.
Specifications
Input voltage: 1.8V to 4.5V
Light source: high efficiency white LED
Maximum light output: 85, 100 or 120 lumens
Runtimes: 1 hour on High setting, 8-10 hours on Medium setting
Regulation: constant power regulation
Battery: 1 – IEC-CR17345, Li-MnO23.2V non-rechargeable,
Li-CoO2Li-ion 4.2V (3.7V nominal) rechargeable
Lens: ultra-clear glass with anti-reflective coatings
Housing: aerospace aluminum, military type III hard anodize,
stainless steel bezel
Waterproof: 20 meters (66 feet) – static
Dimensions: 25.5mm (1 inch) diameter by 89mm (3.5 inches) long
Weight: 88g (3.1 ounces) including batteries
Specifications are subject to change without notice.