Project Log: DIY Canister light

[divinginn]

so far I have 50 dollars invested in my light,but a 1500 or so flashlight should be very impressive,and I am sure salvos 50 watt hid would probably light up the water also,but right now I am staying low buck and simple technology until I get everything right,if it floods right now the worst that would happen would be losing a 2 dollar bulb and a 20 dollar battery pack,which I doubt would hurt either,maybe the bulb if cold water hit it. I dont disagree that led lights are where it will be at very soon. salvo replacing all their 10 watt hids with led lights tells me where the future is going.

 

[Plumb bob]

Have you looked at the new Salvo Rebel LED lights?

I can get 1800lm with 6º divergence out of 21W's and my bulbs will last forever. It takes you 35W to get the same output with an 8º divergence and you have to periodically replace your bulbs. And unlike your halogens, my LED's aren't going to dim as the battery gets used. In my mind there is no comparison, LED's are more efficient and cost less in the long run.

Really? you get 1800 lumens? are you sure? Is this a home made job or one of Salvos'?

 

[ucfdiver]

Really? you get 1800 lumens? are you sure? Is this a home made job or one of Salvos'?

Mike´s Tauchseiten

 

[Plumb bob]

Wow I am very impressed! I may have to rethink my design for the mark 3..

 

[BNow0707]

Marchand - are you going to have to heat sink or do anything those LED's you bought or are they just a red wire to positive and black wire to negative and your good to go thing?

Also has anyone considered using one of these?

They're PVC conduit fittings. The one taken apart actually has a small foam gasket but the bigger picture (AND THE ONE I BOUGHT) has a rubber seal. I took my cousins Surfire 9P apart got the bulb unit and marked it out and I could easily fit four of the drop in LED units in the fitting. The top would have to be cut and a glass or polycarbonate lense sealed in place. I picked up one with a rubber seal today and I'm gonna seal up the ends and weight it down and do a leak test tomorrow just to see if its worth going any further with.

 

[ucfdiver]

I'm meeting with a machine shop to custom laser cut this stuff, no pvc......pvc cracks easily!

I'm about 99.999999% sure that leaks or easily cracks at depth.

 

[marchand]

My lighthead is going to be one big heatsink. The modules do get hot so I'm going to say that a heatsink is mandatory.

 

[BNow0707]

But as long as the light head was made out of aluminum or other metal that actually contacted the modules a seperate heatsink unit wouldn't be necessary, correct?

 

[ucfdiver]

But as long as the light head was made out of aluminum or other metal that actually contacted the modules a seperate heatsink unit wouldn't be necessary, correct?

It would be preferred to make the head that way i would assume, that way you're dissipating heat pretty effectively.

 

[marchand]

Yeah, as long as you have something metal in contact with the modules and the water you shouldn't have any problems.