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About Underwater Kinetics SL4 eLED L1 Dive Light

The high intensity LED and incredible battery life move the SL4 (L1) to the top of the chart for international dive travel. Compact size and narrow penetrating beam allow you to see way to the back of an overhand on the wall, daytime or night. As an added bonus the SL4 is equally at home at work or around the house as well as in bad weather.

The eLED circuitry provides relatively constant brightness throughout most of the life of the batteries. As the batteries are nearly depleted the brightness of the LED falls sharply, but does not go out as happens with classical filament lamps. This brightness will persist for several days, making this light valuable for emergency situations. The SL4 eLED is also great as a photo spotting light or to illuminate gauges and dive tables.

The SL4 LED operates more efficiently and produces more light when it is cool. Underwater, the SL4 eLED burns brighter for almost half of the battery life, due to the unique way that heat is conducted away from the LED. The higher brightness consumes a little more power and slightly reduces the battery life. The SL4's eLED Lamp produces 400 lumens of brightness with a beam reach (on land) of 622' (189.6 meters). 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 10 hours. The light measures 6.2" x 1.5" x 1.7" (15.75 x 3.81 x 4.32 cm), weighs 15.02 oz (425.81 g) and is depth rated to 500' (152.4 meters). The SL4 includes an owner's manual, adjustable rubber covered wrist lanyard and is proudly made in the USA. Light is covered by a limited lifetime warranty.

The Underwater Kinetics SL4 eLED L1 Dive Light is commonly used for Cave Diving, Close-Up Viewing, Night Diving, Professional, Recreational, Safety Backup and more. The Underwater Kinetics SL4 eLED L1 Dive Light is most used by customers who consider themselves to be a Advanced, Casual/ Recreational, Professional among others. The Underwater Kinetics SL4 eLED L1 Dive Light is popular because customers like the following qualities of the Underwater Kinetics SL4 eLED L1 Dive Light: Compact, High Intensity, Long Bulb Life, Reliable, Well-Focused.

Warranty Information

This product has a limited lifetime warranty.

www.uwkinetics.com
(858) 513-9100

Underwater Kinetics SL4 eLED L1 Dive Light Features

  • Bring Out Incredible Colors and Intricate Detail of Marine Life
  • Great Travel Light
  • 1-Hand Operated Rotary Switch
  • Lamp: High intensity eLED
  • Narrow and Penetrating Beam
  • Brightness: 400 Lumens
  • Beam Range: 622' (189.6 meters) On-Land
  • Power: 4 x "C"-Cell Alkaline (included)
  • Molded Rubber Bezel Cover: Reduces Glare and Protects Light
  • Fits Neatly in BC Pocket
  • Dimensions: 6.2" x 1.5" x 1.7" (15.75cm x 3.81cm x 4.32cm)
  • Weight: 15.02oz (425.81g)
  • Depth Rating: 500' (152.4 meters)
  • Includes: Wrist Lanyard and Owner's Manual
  • Limited Lifetime Warranty

SL4 eLED L1 Dive Light Customer Reviews

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Underwater Kinetics SL4 eLED L1 Dive Light
 
4.7

(based on 63 reviews)

Ratings Distribution

  • 5 Stars

     

    (51)

  • 4 Stars

     

    (8)

  • 3 Stars

     

    (1)

  • 2 Stars

     

    (3)

  • 1 Stars

     

    (0)

95%

of respondents would recommend this to a friend.

Pros

  • High intensity (51)
  • Compact (50)
  • Reliable (44)
  • Well-focused (40)
  • Long bulb life (22)

Cons

  • Heavy (10)

Best Uses

  • Recreational (48)
  • Night diving (44)
  • Close-up viewing (35)
  • Safety backup (29)
  • Cave diving (17)
    • Reviewer Profile:
    • Advanced (38), Casual/ recreational (16), Professional (6), Beginner (3)
    • Was this a gift?:
    • No (60), Yes (3)

Most Liked Positive Review

 

Excellent light for reef and wreck

I used this light for multiple dives on a wreck and reefs in St Maarten for daytime dives to 65 ft. Operation was flawless, excellent light for nooks and crannies, under rock overhangs,...Read complete review

I used this light for multiple dives on a wreck and reefs in St Maarten for daytime dives to 65 ft. Operation was flawless, excellent light for nooks and crannies, under rock overhangs, looking into compartments of a wrecked cargo ship, etc. Weight was reasonable, I clipped it to my BCD. The range was good enough to shine over a dive buddy's shoulder and into an rock overhang to illuminate a honeycomb cowfish.
I can not comment on usefulness for night dives as I did not use for that purpose, but it is great light for improving visibility on day dives.

VS

Most Liked Negative Review

 

It's a light

Bought this for the girlfriend to take on Advanced Class Night Dive. Strangely, I took the top off and reversed one battery to throw it in the dive bag...but the light still...Read complete review

Bought this for the girlfriend to take on Advanced Class Night Dive. Strangely, I took the top off and reversed one battery to throw it in the dive bag...but the light still works with the battery reversed. Overall, this is a nice, simple light. Not quite as bright as my LED, but pretty close at 1/3 the cost. There is no lock on the on/off switch, so just take one batter completely out when traveling. Recommended for the low price point.

Reviewed by 63 customers

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Displaying reviews 1-5

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5.0

Does what it says on the tin!

By Mikeyt

from Qatar

About Me Beginner

Pros

  • Compact
  • High Intensity
  • Reliable

Cons

    Best Uses

    • Close-Up Viewing
    • Recreational

    Comments about Underwater Kinetics SL4 eLED L1 Dive Light:

    Easy to use. Good illumination. Easily fits into BCD pocket. Nice weight and lanyard good quality.

    • Was this a gift?:
    • No

    Comment on this review

     
    5.0

    Works Well ... very bright

    By chemist

    from Toledo, Ohio

    About Me Advanced

    See all my reviews

    Verified Buyer

    Pros

    • High Intensity

    Cons

      Best Uses

      • Night Diving
      • Recreational

      Comments about Underwater Kinetics SL4 eLED L1 Dive Light:

      Bright light for night diving. Seemed slightly heavy but the weight of it was comforting at night; easy to grip ... all-in-all this light is a good product

      • Was this a gift?:
      • No

      Comment on this review

       
      5.0

      Winner for the price range

      By Kebosatu

      from Singapore

      About Me Advanced

      Pros

      • Brightness
      • Long Burn Time
      • Reliable
      • Well-Focused

      Cons

      • Heavy
      • Heavy With 4c Batt

      Best Uses

      • Cave Diving
      • Night Dives
      • Night Diving
      • Recreational
      • Safety Backup
      • Wreck

      Comments about Underwater Kinetics SL4 eLED L1 Dive Light:

      This is a great dive light. It's said it's a backup but many ppl using it as primary. The long burn time made me feel safe compared to other lights with 18650 battery. Though it will be pretty heavy with 4C batteries. Went night dives with this and wreck dives without worry about battery. Just turn it on all the time.

      • Was this a gift?:
      • No

      Comment on this review

      (0 of 1 customers found this review helpful)

       
      3.0

      It's a light

      By DenverAJN303

      from Denver, CO

      About Me Professional

      See all my reviews

      Verified Buyer

      Pros

      • Compact

      Cons

      • Heavy

      Best Uses

        Comments about Underwater Kinetics SL4 eLED L1 Dive Light:

        Bought this for the girlfriend to take on Advanced Class Night Dive. Strangely, I took the top off and reversed one battery to throw it in the dive bag...but the light still works with the battery reversed. Overall, this is a nice, simple light. Not quite as bright as my LED, but pretty close at 1/3 the cost. There is no lock on the on/off switch, so just take one batter completely out when traveling. Recommended for the low price point.

        • Was this a gift?:
        • Yes

        Comment on this review

         
        4.0

        Bright But a Little Heavy

        By CG Dallas

        from Dallas, TX

        About Me Casual/ Recreational

        See all my reviews

        Verified Buyer
        Staff Reviewer

        Pros

        • Compact
        • High Intensity
        • Reliable

        Cons

        • Heavy

        Best Uses

        • Close-Up Viewing
        • Night Diving
        • Recreational
        • Safety Backup

        Comments about Underwater Kinetics SL4 eLED L1 Dive Light:

        I bought this as a primary light for an upcoming night dive thinking my Ikelite Gamma would not be adequate for a primary. As it turns out, I was wrong. The Ikelite is plenty bright for the purpose and much more compact, light and streamlined. I will keep this light, because it is very bright and will probably not carry it as a tactical spot light on regular dives. Will decide whether the Ikelite or the UK SL4 earns the primary spot on night dives. Remains to be seen. The light is very bright.

        • Was this a gift?:
        • No

        Comment on this review

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