Waterproof LED flounderlight

[broadwayjoe]

I am trying to build a waterproof LED light cell. I want to use 3 Cree XML T6 cool white LED's per light. What specific parts, heat sinks?, mounting plates, drivers would you recommend for a 12 Volt marine battery? I envision a 2" or smaller PVC housing filled with compatible epoxy to waterproof and shock proof the LED's or a hollow housing with a plexiglass lense. What's the highest I can run these without heat becoming and issue? Max 1000 lumens or lower?

Thank you.

 

[Codiak]

I am trying to build a waterproof LED light cell. I want to use 3 Cree XML T6 cool white LED's per light. What specific parts, heat sinks?, mounting plates, drivers would you recommend for a 12 Volt marine battery? I envision a 2" or smaller PVC housing filled with compatible epoxy to waterproof and shock proof the LED's or a hollow housing with a plexiglass lense. What's the highest I can run these without heat becoming and issue? Max 1000 lumens or lower?

Thank you.

Check out the diving group, there are plenty of examples of canister lights that are good references.

In this case a simple mag lite head mod with a driver from taskled would do the trick.

 

[qwertyydude]

Almost everyone who goes diving here will tell you a flood light underwater will prove most useless. Diving lights are almost always throwers, and sometimes specially dedicated throwers like recoil style lights to eliminate all spill.

The problem is that unless you're diving in perfectly clear blue Hawaii water, a flood light blind you in the normal cloudiness of the water. It's like a permanent fog. So you're probably better served with a single led in a more throwy configuration.

The BT-QS66 diving light on DX looks very promising and I'm absolutely sure that you can fit an XM-L led in it for more light, with very little modification, you'll need a 12v driver for it though if you want to wire it up for a marine battery. It's already completely waterproof, has a throw configuration suitable for diving and looks very rugged. I'm sure with a little work like better o-rings it would hold up well to a good dive.

Certainly for the price you'll be starting off with a lot better host than a PVC pipe.

 

[broadwayjoe]

Thank you for the information.