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$35.95 You save: $24.05 (40%)

List : $60.00

Product Highlights:

  • 5.5-watt xenon lamp
  • 113 lumens
  • Hand-operated rotary switch
  • Aluminum reflector
  • Molded rubber bezel cover
Underwater Kinetics : Picture 1 regular $35.95

About Underwater Kinetics Sunlight SL4 Dive Light

The SL4 has to be the smallest and brightest 4 "C" cell dive light ever made! It emits a narrow and penetrating beam, which allows you to seek out unique marine life found under ledges. It also works well when attached to protective head gear in technical diving applications. The SL4 is great as a photo spotting light or to illuminate gauges and dive tables. Light fits neatly in a BCD pocket so it's always ready for use with its 5.5 watt high pressure xenon filled lamp. Tough, non-conductive ABS and polycarbonate plastic construction will not corrode, dent or freeze to skin in cold weather, and it comes with an adjustable rubber sleeved lanyard.

The SL4's Xenon lamp produces 113 lumens of brightness with a precision machined aluminum reflector that gives a tight 8° degree beam angle. The light has an 804' (425 meter) beam distance on land. To reduce glare and protect the light, the SL4 comes with a molded rubber bezel cover. The rotary switch is easily activated with the thumb and index finger for single hand operation. The Light is powered by 4 x C"-cell alkaline batteries (included) with a burn time of 4 to 5 hours. The light measures 6.3" x 1.8" x 2.5" (16 x 4.57 x 6.35 cm), weighs 15 oz (425.24 g) and is depth rated to 500' (152.4 meters). The SL4 is available in multiple colors, includes an owner's manual, is proudly made in the USA and is covered by a limited lifetime warranty.

Warranty Information

This product has a limited lifetime warranty.
(858) 513-9100

Underwater Kinetics Sunlight SL4 Dive Light Features

  • Underwater Kinetics Sunlight SL4 Dive Light
  • Smallest & Brightest 4 "C" Cell Dive Light Ever-Made!
  • Emits Narrow & Penetrating 8° Degree Beam
  • Beam Distance: 804' (425 meter) On Land
  • Great for Attachment to Protective Head Gear in Technical Diving
  • Great for Photo Spotting Light or Illuminate Gauges & Dive Tables
  • Fits Neatly in BCD Pocket
  • 5.5 Watt High Pressure Xenon Filled Lamp
  • Tough, Non-Conductive ABS & Polycarbonate Plastic Construction
  • Will-Not: Corrode, Dent or Freeze to Skin in Cold Weather
  • Adjustable Rubber Sleeved Lanyard
  • Lumens: 113 Lumens of Brightness
  • Precision Machined Aluminum Reflector
  • Molded Rubber Bezel Cover: Reduce Glare & Protect Light
  • Rotary Switch: Easily Activated, Single Hand Operation
  • Power: 4 x C"-Cell Alkaline Batteries (included)
  • Burn Time: 4 to 5 Hours
  • Depth Rating: 500' (152.4 meters)
  • Dimensions: 6.3" x 1.8" x 2.5" (16 x 4.57 x 6.35 cm)
  • Weight: 15oz (425.24g)
  • Available in Multiple Colors
  • Owner's Manual
  • Proudly Made in the USA
  • Limited Lifetime Warranty

Underwater Kinetics Sunlight SL4 Dive Light Specifications

ABS and Polycarbonate Plastic
5.5-Watt Xenon Lamp
Effective Range
804' (425 meter) On-Land
4 x C"-Cell Alkaline Batteries (included)
Burn Time
4 to 5-Hours
Depth Rating
500' (152.4 meters)
6.6" x 5.6" x 3.2" (16.76 x 14.22 x 8.13 cm)
15oz (425.24g)
Attachment or Handle
Handheld, Wrist Lanyard
Available in the Following Colors:
Blue, Black, Yellow
Weight [with packaging]
1.05 lb
Mfr #

Sunlight SL4 Dive Light Customer Reviews

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by PowerReviews
Underwater Kinetics Sunlight SL4 Dive Light

(based on 1 review)

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Reviewed by 1 customer

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Good light

By Scubabandit

from Reno, NV

About Me Avid Adventurer

Verified Reviewer


  • Bright
  • Durable
  • Long battery life


  • No Beam Adjustment

Best Uses

  • Backup dive light
  • Car Camping
  • Day time dive light
  • Primary dive light

Comments about Underwater Kinetics Sunlight SL4 Dive Light:

This is a nice compact light. The flat shape fits easily into your BCD pocket. The beam is tighter than my Princeton Tec 400 and it is maybe just a bit brighter. It is easier to get in and out of my BCD pocket than the Princeton. My wife really likes the size and weight too. The slightly lighter weight makes it a good choice for traveling. The batteries are a little tricky getting in, but no worse than my NiteRider dive light. I would prefer that it had a magnetic switch, although the mechanical switch seems rugged enough. The switch placement on the front of the light make it a little awkward to use at first until you get used to it. It is bright enough to be used as a primary dive light in clear water or as a good backup in lower vis diving. It would probably be adequate as a third or forth backup light for overhead environment diving too. It's size also makes it a great light for using on daytime dives when you want to look under a dark ledge to see who's hiding or those late afternoon dives that almost turn into night dives. If you are traveling, I would recommend buying a spare bulb to take with you. This light gets pretty warm out of the water. If you travel with it, pack the batteries separately so it will not turn on accidentally in your dive bag and cause a problem. You can also find a good LED replacement bulb on one of those famous (infamous?) online auction sites that is a lot brighter than the OEM bulb. Typical rugged and reliable UK quality. This light offers a very good value.[...].

    • Similar:
    • Princeton Tek 400 and 600, UK1200, King Pelican

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