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FAQ’s

Can I use Lithium AA cells in the UK4AA or UK4AA eLED light?
Electrically speaking, it is OK to to use Lithium AA cells, such as the Energizer L91 Li/FeS2, in these products. The problem is that Lithium batteries are not rated for use in the hazardous locations for which the lights were tested. Only Alkaline AA cells by Duracell, Energizer and Rayovac are rated.
Can I carry my dive light on board an aircraft?
According to DOT regulations which are enforced by the FAA you can if you remove the batteries from the light.

US DOT 49 CFR Part 175.10(a)(23) "With the approval of the operator of the aircraft and as carry-on baggage, electrically powered heat-producing articles (e.g. battery-operated equipment, such as underwater torches and soldering equipment), which, if accidentally activated, will generate extreme heat and can cause fire. The heat-producing component, or the energy source, must be removed so as to prevent unintentional functioning during transport."

For more information go to http://asi.faa.gov/Docs/HAZMATByPassenger.pdf.
Can I get a replacement battery for my UK600R, UK600RH, UK1200R UK1200RH, SE200R or SE400R?
Underwater Kinetics no longer stocks batteries for these products. We recommend purchasing the Powersonic PS-650L 6V 5 AHr lead acid battery from a local battery seller or from the Battery Connection (760) 740-6688.
Where can I get a replacement lamp for my UK600R, UK600RH, UK1200R UK1200RH, SE200R or SE400R?
Underwater Kinetics no longer stocks lamps for these products. These lamps were custom made to meet UKs high standard for high output, and high color temperature. As the lights which used these lamps were replaced by higher performance models demand for replacements fell below the minimum replacement quantity and the lamps were discontinued
Can I use a higher wattage lamp in the Light Cannon 100?
Unfortunately there is only one lamp which will operate in the light. Unlike incandescent lights, brightness cannot be improved by switching to a brighter lamp. The ballast must also be altered to go with the brighter lamp. We are drawing the maximum amout of current from the batteries with the current lamp ballast configuration.

Any higher wattage would involve the use of rechargeable batteries to supply the increased power.
I cannot unscrew the Bezel on my C8 (C4, D4, D8, Light Cannon) light, what can I do?

This happens occasionally when the bezel is screwed down too tight and allowed to remain in this mode for a long time. It is best not to store the light with the bezel fully tight. When making the seal, only a quarter turn past the point where the o-ring begins to be compressed is sufficient. Tighter does not make a better seal. There are several options. All require more force. Be careful not to try too hard and hurt yourself.

  1. Use 2 people. One person turns the bezel while the other holds the case.
  2. Heat the bezel in hot tap water before trying to unscrew the bezel.
  3. Use an oil filter wrench on the bezel. You can get more torque that way.
  4. Send the light to UK for repair.
What is the proper way to sharpen my Blue Tang Titanium knife. I was told that the Titanium is just an outside coating and that if I use a sharpening stone it would probably damage that titanium layer and expose the inner metal layer and make it prone to rust. Is that true?
The advantage of titanium is that it is light weight, tough, non-magnetic and will never rust. The disadvantage is that the metal is softer and does not hold an edge like high carbon steel (which also rusts). Our titanium knives are made from solid titanium. They are not just steel coated with a hard outer layer with materials such as titanium carbonitride. Sharpening titanium can be a little more difficult because of the "gummy" nature of titanium compared to hardened steel. It has a lower Rockwell C hardness. It tends to fill up a grinding wheel. It is best to use a diamond filled sharpening tool. Sharpen like any other knife, but be patient. Because the blade is softer, the edge tends to get "rolled." Sometimes using a "steel" to straighten the edge is enough. A good link for general blade sharpening is noted below.

http://gpvec.unl.edu/filesdatabase/files/feedlot/sharp1.htm
Can I use the NiMH (Nickel-Metal Hydride batteries) for Light Cannon?

Yes, our instruction states that Alkaline, NiCad or NiMH can be used for our LC100, C and D-lights. However, we only warrant UK lights against manufacture's defect. If the the battery you purchased from somewhere have some issue, it will not be covered under UK warranty.

What’s the bulb life for 4AA Xenon?
It’s about 20-30 hours. The Xenon bulb will eventually burned out and replacement bulb part number is #14801.
Which UK lights are intrinsically safe?

The only lights which are intrinsically safe are the 3AA CPO, 4AACPO, and Vizion I lights which are rated Class I, Div 1 by ETL. Also all of our ATEX rated European lights are intrinsically safe.

Class I, Div 2 lights are not intrinsically safe, that are called non-incendive.

Can you provide the certification for your Ultra cases?
The UK Ultra Case product line utilizes high-impact ABS plastics due to it's overall durability especially in cold weather. Our Ultra Cases are used in every branch of the US Military as well as major aerospace companies like Northrop and Raytheon. Our cases have been tested to meet IP67 and have been given Mil Spec ratings through our independent distributors.
Can you provide the Candle power of UK lights?

Candle power simply indicates the brightness of the center of the beam measured at 12 inches away. Lumen indicates the total amount of light being released in every direction. One would have to have detailed information about the concentration of the beam by the reflector and optics to even begin to make this calculation. We use the value of distance to indicate center of beam brightness. This indicates how far the light will shine until the spot is the same brightness as would be cast by the full moon. This weird measurement comes from the outdoor market.

Here are some values:

UK4AA Xenon 2400 cp
3AA eLED CPO 2400 cp
UK 4AA eLED CPO 3810 cp
SL3 6500 cp
Vizion I (high power not diffused) 1000 cp Aqua Sun eLED 8200 cp

These are not official values, but close.