Sunlighten Signature Power Box User manual

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OWNER’S MANUAL
VERSION 10022023
Signature

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Congratulations!
You are now the owner of a Signature® sauna. With Sunlighten infrared light, you are
empowered to improve your quality of life. Just follow our assembly instructions and sauna
protocol to begin your wellness journey with the very best in infrared therapy.
WARNING:
Do not use this sauna to treat any health problems without consulting your physician.
Sunlighten, Inc. does not provide medical advice, education or treatment. Our information
should not be relied on in making decisions about your health. Always consult your physician
for medical advice.

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USER MANUAL
VERSION O1.O1.2O21
TABLE OF CONTENTS
PRE-INSTALLATION
Specifications ......................................................................... 4
Pre-Installation Info................................................................. 5
OPERATING INSTRUCTIONS
Control Panel ......................................................................... 6
Chromotherapy ...................................................................... 7
Warm-Up Time/Usage ........................................................... 9
Sauna Protocol ....................................................................... 10
Health & Safety ...................................................................... 11
FAQ ............................................................................................. 12
TROUBLESHOOTING............................................................................. 15
WARRANTY ............................................................................................. 16
Additional guides, including assembly, can be found at sunlighten.com/
customerservice/guides-and-specs.
Signature
OWNER’S MANUAL
VERSION 10022023

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SIGNATURE SERIES SPECIFICATIONS
Signature III
Dimensions
(W x L x H)
62.3” x 45.9” x 77.7”
1,583 mm x 1,167 mm 1,973 mm
Signature IV*
Dimensions
(W x L x H)
80.9” x 56.1” x 77.7”
2,056 mm x 1,426 mm x 1,973 mm
*US: DEDICATED 240V 20A CIRCUIT REQUIRED,
NEMA 6-20 - SEE IMAGE ON RIGHT
UK: DEDICATED NS-17 OUTLET - SEE IMAGE ON RIGHT
Signature I
Dimensions
(W x L x H)
37.8” x 39.8” x 77.7”
960 mm x 1,010 mm 1,973 mm
Signature II
Dimensions
(W x L x H)
50.9” x 45.9” x 77.7”
1,293 mm x 1,167 mm x 1,973 mm
REGION VOLTAGE/AMPS EXTERIOR POWER CORD
UK: NS-17
US: NEMA 5-20 US: NEMA 6-20
It is important when installing the dedicated circuit
for your unit not to include a GFCI (Ground Fault
Interuptor) or AFCI (Arc Fault Circuit Interuptor).
These are often installed in household electrical
setups as a means of surge and arc protection, but
will mistake the power operation of our units for
these and trip the breaker, disrupting sauna use.
Please note if your codes require an AFCI or GFCI,
please install Class C to ensure unit performance.

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WARNING
READ BEFORE OPERATING
To reduce risk associated with hazardous voltage & re:
• Unplug the sauna from electrical outlet before storage or when not
in use for extended periods of time.
• Do not operate the sauna if it’s not on a dedicated electrical circuit,
or has a damaged power cord/plug.
• If the sauna is not working properly or an odor persists, immediately unplug the sauna.
• Do not leave the sauna unattended while turned on, or in use
• Never cover holes or oor grate with towels, mats, garments, etc.
PRE-INSTALLATION
1. If your sauna requires a dedicated outlet according to the table on page 4, please
have a certied electrician install a dedicated outlet for sauna. Failure to do so will
void all warranty.
2. Remember your sauna should be assembled by two or more people.
3. Do not place plumbing or plumbing xtures in or around the sauna.
4. Keep all liquids away from the heating panels, electronics, and interior wood.
5. Install sauna on a level surface.
6. Install sauna in an area that is dry and protected from the weather.
7. Keep ammable objects and corrosive chemical substances away from the sauna.
8. Installation of the sauna in an area below standard room temperature can increase
warm-up time.

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OPERATING INSTRUCTIONS
INSTRUCTIONS
1. Plug in sauna.
2. Press the On/Off button to turn on your sauna.
3. Top Display: Press arrow Up or Down to set desired
session time (sauna heaters will automatically turn off
when time has reached 0).
4. Bottom Display: Press arrow Up or Down to set desired
temperature.
Note: Press both temperature arrows simultaneously to
change from Celsius to Fahrenheit. After 5 seconds the
display will show actual interior temperature.
5. Press outside lights button (G) to turn On/Off exterior
lights.
6. Press inside lights button (F) to turn On/Off interior lights.

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SIGNATURE CHROMOTHERAPY
Your Signature comes equipped with chromotherapy lighting. Chromotherapy is the
science of using colors to adjust body vibrations to frequencies that result in health and
harmony. Each color possesses frequencies of a specic vibration, and each vibration is
related to different physical symptoms. Chromotherapy works on various energy points
to help your body re-establish its natural balance.
Chromotherapy Remote
Make sure your chromotherapy remote has a battery in it. You will need to point the
remote directly at the lights to operate your lights.
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4 6
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8
9
10
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3
1Adjusts intensity of lights
2Turns off lights
3Turns on lights
4Green light
5Red light
6Blue light
7White light
8Lights transition slowly
9Lights transition smoothly
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11 Lights strobe
12 Color selection
Chromo Remote

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WARM-UP TIME & USAGE GUIDELINES
Our saunas are based on the infrared wavelength and not cabin temperature. Set to the
desired temperature and allow the sauna to warm-up for at least 45-60 minutes. The sauna
heats up an average of one degree per minute. Follow these steps for proper warm-up.
Step 1: Make sure your sauna is plugged into a dedicated outlet installed by
a certied electrician.
Step 2: Check the settings on the keypad. The default setting should be set to
150.8°F (66°C) and the timer set to 60 minutes.
Step 3: When turning sauna on for the rst time, ensure each heater is warming up
after a couple of minutes. If they are not, check roof connections.
NOTE: If your sauna is outside or in an unheated garage, sun room, basement, or patio,
it may require additional time to warm the sauna up. Warm time is impacted by the
temperature of the surrounding surface and room. Keep in mind you are required to have
an authorized Sunlighten cover over your sauna if it is outside or exposed to the weather in
order to maintain your warranty.
4-HOUR TIMER MODE
• Turn off the sauna.
• Press and hold the power button until the timer display reads “4h” (~15 seconds)
• The unit will now be in “4-Hour Timer” mode and will stay in that mode until it is either
canceled (instructions below) or the unit is unplugged.
To cancel “4-Hour Timer” mode: with the unit off, press and hold the power button until the
display turns on.
RESERVATION MODE
• Turn off the sauna.
• Press the timer up and timer down arrows simultaneously.
• A digit will appear on the timer section of the screen to indicate the number of hours
before the sauna turns on.
• When the timer counts down to “0,” the sauna will turn on for a 60-minute session and
will be set to 150.8°F (66°C).
To cancel a reservation, press the timer up and timer down arrows simultaneously until the
time display turns off. At this point you can turn the sauna on normally.

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SAUNA PROTOCOL
Follow this quick guide for the optimal sauna experience.
PRE SAUNA SESSION
• Hydrate with at least 8 oz (.24 L) of water to prepare your body for an increase in core
temperature.
• Pre-heat for approx. 45 minutes. Depending on room temperature, your sauna will
heat up a degree per minute, before reaching 120°F (49°C) . Heat time increases at
temperatures above 120°F (49°C).
• Use towels to absorb sweat during sessions.
SAUNA SESSIONS
• Begin your session when your sauna reaches 100.4°F (38°C).
• The optimal sauna experience occurs between 100.4°F (38°C) and 129°F (54°C).
• To get your body accustomed to infrared therapy, start with 10-15 minute sessions at
100.4°F (38°C) every other day.
• Gradually increase towards 40-minute daily sessions in the optimal temperature range.*
• Don’t be surprised if you don’t sweat during the rst few sessions.
• Sweating will increase with regular use, removing toxins and leaving you feeling
refreshed and rejuvenated.
• For added intensity, use Pure Sweat amplifying cream to increase sweating,
circulation, and to boost results.
POST SAUNA SESSION
• Drink at least 24 oz (.7 L) of water or electrolyte to rehydrate.
• Dry off with a towel. Cool down naturally or with a refreshing shower.
• After every use, dry off your units’ interior surfaces. Every 2-3 uses, use our Natural Sauna
Cleaner (shop-us.sunlighten.com/collections/maintenance).
*Listen to your body. Be aware of excessive detoxifying. If you begin to feel symptoms
such as nausea, fatigue, or u-like symptoms during your sauna session, discontinue use
immediately. If these symptoms continue, consult your physician.

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HEALTH & SAFETY
Our infrared saunas operate with the same efcacy in your home as in a medical facility. Like
all professional equipment, you may put yourself at risk if you do not fully understand how
to use the sauna. Infrared sauna use as creating a cure for or treating any disease is neither
implied nor should be inferred. Drinking an electrolyte-replacing water or a sports drink is
strongly recommended before and after use.
IMPORTANT SAFEGUARDS
• Never sleep inside the sauna while it is on.
• Do not use harsh cleaning agents on the interior of the sauna.
• Do not stack or store objects on top of or inside the sauna.
• Do not use during an electrical storm, as there is a remote risk of shock.
• Altering or tampering with any electrical connections on the power supply is
dangerous and will void the warranty
• Do not attempt a repair without consulting Sunlighten rst. Unauthorized repair
attempts will void the warranty
PRECAUTIONS
If any of the below apply to you, consult your physician prior to sauna use:
For more information on saunas, visit sunlighten.com/saunas, and contraindications, visit
sunlighten.com/contraindications.
• Medications
• Children
• Elderly
• Chronic conditions / diseases associated
with reduced ability to sweat or perspire
• Hemophiliacs / individuals who are prone
to bleeding
• Cardiovascular conditions
• Pacemaker / debrillator
• Alcohol / alcohol abuse
• Fever
• Sensitivity to heat
• Pregnancy
• Joint Injury
• Implants

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FREQUENTLY ASKED QUESTIONS
ASSEMBLY
Can I assemble my sauna outdoors?
Yes, if you protect it with a Sunlighten sauna cover. If you place your sauna outdoors without a Sunlighten
cover, your warranty will be void. The sauna covers are custom made and may not arrive until after you
receive your sauna. Do not install your sauna outdoors prior to receiving your cover. Doing so will void
the warranty. Check the sauna cover annually for normal wear and replace as needed. Sauna cover
manufacturer warranty is one year. Visit sunlighten.com/customer-service/guides-and-specs for sauna
cover instructions.
How much room is required around my sauna for setup and maintenance?
We recommend 4-12 in. (10-30 cm) of clearance around the back, sides, and 12 inches at the top of the
sauna to access plugs and for general maintenance. Leave at least 4 in. (10 cm) behind the unit to allow the
electronics to cool.
What surfaces can I set my sauna on?
You can set your sauna on tile, concrete, carpet, laminate or wood. Always have your sauna feet installed.
Remember to make sure that your sauna is level regardless of its location for optimal use. If your sauna is
placed outdoors, make sure there is adequate drainage so that water cannot pool around the base of the
sauna. If placed near or on cool surfaces (like concrete and basement walls), warm-up can be impacted.
How do I install Sound Therapy?
Sauna accessories have separate owner’s manuals. Refer to the appropriate manual at sunlighten.com/
customer-service/guides-and-specs.
How do I disassemble if I need to move the sauna?
Refer to assembly sheet and follow the steps in reverse.
USAGE
How long does it take for my sauna to warm-up?
The controls are preset to 60 minutes at 150.8°F (66°C). However, the inside cabin temperature is not
intended to reach this. Our saunas are based on the infrared wavelength and not cabin temperature. Allow
the sauna to warm-up for 45-60 minutes. The sauna heats up at an average of 1 degree per minute. If
located outside or in unheated garage, additional warm-up time may be required. If you prefer the sauna
hotter, let it warm-up longer.

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Can I use my sauna every day?
For most people, daily sauna use is okay after your body has become accustomed to infrared therapy. Drink
increased amounts of water to stay hydrated. Listen to your body and stop your session if you feel any
discomfort.
How long can I use it each day?
40 minutes is the recommended session length. See the sauna protocol on pg. 10.
What is the best temperature to use my sauna?
First, it is important to understand that health benefits are a result of efficient infrared emissivity, not air
temperature. Sunlighten saunas are 95-99% emissive to deliver the highest concentration of infrared.
With that, the optimal sauna experience occurs between 100.4-129°F (38-54°C). During your first few
sessions, start at a lower temperature of 100.4°F (38°C) and gradually increase in later sessions. Everyone
has different preferences and tolerances for heat. The most important thing is to listen to your body. Keep in
mind, if you’re sweating at 115°F (46°C) you’re getting the same benets as if sweating at 151°F (66°C).
What is the micron range of the heaters?
The design of a SoloCarbon® heater allows for most of the far infrared wavelength to be near 9.4 microns, which is
the level at which the human body absorbs infrared energy.
Can I touch the heaters?
No. The heaters will be hot, especially the mid-infrared section in the middle, so it is not safe to touch
heaters while on or an hour after use. Touching the frames that cover the heaters is safe.
How much will the sauna cost to run a month?
The sauna runs on the same wattage as a blow dryer and will cost little to run monthly: typically $.20-.50
(15 to 35 pence) per hour. This varies with the model and local utility cost. Your utility company can help you
understand a more exact per hour cost if needed.
Are the EMF levels safe?
Yes. Patented SoloCarbon panels are 100% quality controlled by Sunlighten to ensure the safety and
effectiveness of each individual heater.
What is the wattage, voltage, and amps of my sauna?
See electrical specifications on page 4.

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MAINTENANCE
How do I clean my sauna?
Sunlighten’s Natural Sauna Cleaner is made specically for use with your sauna. Every 2-3 uses, dampen
a cloth with Sunlighten All Natural Wood Cleaner. Clean glass door and windows with Sunlighten All
Natural Glass Cleaner. You may dust the outside of the sauna with a dry dust cloth. Do not use chemical
cleaners on your sauna. Light sandpaper can be used to treat stains on the inside of the sauna. Sunlighten
Natural Sauna Cleaning Kit can be purchased at shop-us.sunlighten.com/collections/maintenance.
How do I care for the heater fabric?
The heater fabric remains as a covering over the heater panels. This is to protect the heater surfaces from any
scratches, etc. It is also there to prevent physical contact between the skin and the heaters as the sauna is
being used. To clean, wipe fabric with slightly damp cloth, using only clear water. We recommend doing
so at least once every six months. Only do so when sauna is turned off.
Is it normal to see cracks in the wood?
Yes, wood is a living material that continues to respond to climate conditions, even after being
manufactured into a sauna. During normal operation, wood may crack slightly due to changes in moisture
level. These cracks may appear or disappear with the changing seasons, but will not affect the structural
integrity of the sauna. Our saunas are shipped around the globe, and can experience slight blemishes,
scratches, or scuffs from the transit of this sauna. In most cases these blemishes on the exterior of the room
can be concealed by using a small amount of furniture polish, oil, or other furniture treatment. The interior
blemishes, scratches, or scuffs can be either left alone, sanded, or combination of gluing (using a low VOC
wood glue) and sanding. Please avoid any treatment containing benzene or high concentration of alcohol.
However, if you detect major cracking or damage that jeopardizes the functionality of your sauna, please
submit pictures to the Customer Care team at sunlighten.com/customer-service.
For more FAQ’s please visit sunlighten.com/customer-service/frequently-asked-questions.

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ISSUE SOLUTION
An electrical
component is not
working after
assembling
Check all connections. A newly assembled unit with a non-functioning electrical
component (control panel, heater panels, lights, speakers) will most likely have a
missed or loose connection.
Sauna has no power There could be a tripped breaker due to a power surge or not being plugged
into a dedicated outlet. Flip the breaker switch (a black reset button located to
the left of the power box on the roof.) If there is still no power, check the power
cord connections on the roof and make sure they are secure. Also verify the
outlet power.
Slow warm-up time Ensure each wall panel is heating and that you have the CORRECT electrical
specs on a DEDICATED CIRCUIT.
TROUBLESHOOTING GUIDE
For other troubleshooting questions, please visit sunlighten.com.

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WARRANTY
Please refer to your country’s specific warranty information,
if outside the United States.
U.S Residential:
Limited lifetime (7 years) on cabinetry and heaters; 3 years on controls; 1 year on stereo, Blaupunkt Sound
System, sound therapy and chromotherapy.*
U.S Commercial:
5 years on cabinetry and heaters; 1 year on controls, bench, oor, backrest and stereo, Blaupunkt Sound
System, sound therapy and chromotherapy.*
U.S Closeout and Floor Models:
5 years for heaters; 1 year on cabinetry and controls.
U.S Water-Resistant Cover:
The limited warranty covers the fabric becoming unserviceable because of loss of color or strength
from normal usage and exposure conditions, including sunlight, mildew and atmospheric chemicals.
Consumer is responsible for normal care and cleaning of the fabric. This warranty covers fabric only, and
is for (1) year.** Requires use of .004mm plastic sheet (included with purchase) with tenting to create a
slope for water run off to prevent pooling.
Sunlighten warrants the sauna to be free of defects in material and workmanship.
This warranty extends only to the original retail or wholesale purchaser of the sauna and terminated upon
transfer of ownership. The sauna must be purchased and used within one year of the manufactured date.
Freight charges to and from the customer are the responsibility of the customer. This includes freight
charges for parts shipped to enable the services of the sauna.
This warranty is void if the sauna has been altered, misused, abused, or exposed to liquid. Such instances
shall include operation or maintenance of the sauna in deviation to the published instructions,
including operating on a non-dedicated circuit. The warranty extends only to the manufacturing defects
and does not cover the damages resulting from mishandling of the product by the owner.
Sunlighten Corp. shall not be liable for the loss of use of the sauna or other incidental or consequential
damages. Under no circumstances shall Sunlighten Corp. or any of its representatives be held liable for
injury to any persons or damages to any properties. Specications are subject to change without notice.
This warranty is limited to customers in the United Kingdom and Ireland. Other International customers
should check with their local Sunlighten representative.

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WARRANTY CONTINUED
*Limited Lifetime Warranty covers normal use for the lifetime of the product which
is dened as 7 years. Warranty is limited to replacement parts only and does not include costs for crating
of glass door or freight for parts shipped past 90 days from the date
of receipt of goods. The cost of labor and/or service technicians is not included.
**If sauna is placed outdoors, failure to utilize the .004mm plastic sheet supplied (with your sauna cover)
as additional water protection for your sauna will void your warranty. The fabric used for the roof of the
waterproof cover is resistant to water penetration; however it is sewn to the acrylic canvas sides. It is
required to place the included plastic sheet directly over the sauna roof prior to installing the cover and
tenting the plastic and canvas cover by placing an object on the sauna roof to give the fabric elevation for
water to run off and prevent water pooling, as further protection. The cover should remain on the sauna at
all times (including while on and in-use) to avoid water damage and void the warranty.
ATTENTION
Shipping damage must be notated on the Bill of Lading (BOL). Sunlighten must be notied
of any damage to your sauna within three (3) business days of signing the BOL. Failure to notify
Sunlighten within the established time frame will result in the owner taking full responsibility for cost of
ALL REPLACEMENT PARTS including shipping and handling fees.

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NOTES

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The ETL Listed Mark is proof of product compliance (electrical, gas
and other safety standards) to North American safety standards.
Authorities Having Jurisdiction (AHJ’s) in 50 states and Canada and
retailers accept the ETL Listed Mark as proof of product safety.
ETL SAFETY CERTIFIED

US / CAN 7373 W. 107th St. | Overland Park, KS 66212
913.754.0831 | sunlighten.com
Toll Free: 877.292.0020
International sunlighten.com
or contact your local Sunlighten representative
SIGNATURE OWNER’S MANUAL
VERSION 10022023