The lightest and most compact primary dive light member of the UK family.
The C4 Xenon is lighter than most other primary dive lights. It is designed to fit smaller hands while still offering brightness comparable to lights twice its size. Its twin lamp system allows you to switch to a backup bulb underwater. Switch to a second lamp if the first burns out. For maximum color clarity and a comfortable fit, the C4 is a perfect solution.
Twin Lamp Shuttle: Allows for Backup Bulb
- Twin High Intensity 6.6 watt Xenon Lamps with Twin Lamp Shuttle
- Operates on four user replaceable, disposable C-cell alkaline batteries
- Polarized contacts reduce battery leakage
- Dual lamp system allows for safety back up and 60 hours total lamp life
- Protective rubber bezel cover for drop and scratch protection
- Integral contoured pistol style grip
- Non-breakable locking switch prevents accidental actuation
- Tough, non-corroding ABS and Lexan® construction for durability
- Rubber sleeve lanyard included
- Waterproof to 500 feet
- Proudly made in the USA
Ever have the bulb in your dive light burn out during a dive and then have to return to the boat, open the light and make a replacement? With UK’s Twin Lamp Shuttle, you can immediately switch to a backup bulb without ever leaving the water! The locking rotary switch makes it easy to select the new bulb and keep it in place. The Twin-Lamp Shuttle is just one of the many innovative features that make UK dive lights the most technically advanced lights in the world!
Incandescent and Xenon Technology
- Dimensions (L W H): 3.20 in x 5.60 in x 6.60 in (8.13 cm x 14.22 cm x 16.76 cm)
- Battery Type: Alkaline
- Lamp Type: Xenon
- Battery Description: 4C Alkaline
- Burn Time (Alkaline): 4 hrs.
- Light Output (Alkaline): 139 lumens
- Weight: 25.4 oz. (695 g)
- Beam Distance: 426 ft. (124 m)
- Enclosure Protection: IP68
- Depth Rating: 500 ft. (150 m)
UK pioneered the miniaturization of Xenon lamps for use in flashlights. At UK they strive to make lights which produce the maximum brightness, with minimum size, and most efficient use of energy. For years technology limited their selection of light sources to incandescent lamps. They found that off-the-shelf lamps were never bright enough and produced light which was often too yellow. The only solution was to work with selected lamp manufacturers to produce custom lamps to meet their specifications which burned whiter and more efficiently.
Incandescent lamp design for flashlights always gets down to three major parameters, color temperature, power, lamp life. These must be adjusted for the needs of the application. Unfortunately they are all linked together. When one is pushed to the limits the others may suffer.
Lamps used in UK lights are designed to operate at the highest color temperature without getting too close to the burnout temperature (3000° - 3200° K.) They are filled with high pressure xenon gas (the best and most expensive) to retard filament evaporation and when necessary, some have small amounts of halogen gas added. High performance lamps may cost a little more, but the benefit is a whiter beam of light which makes illuminated objects appear more natural.