Lighting a 4x4 on the low low.

Airwalker16

Airwalker16

Well-Known Member
Krytend said:
Hypothetical if I run them without a heatsink will they run hotter ? Also what would I mount them too. Thanks for the help I feel like a noob with the strips stuff.
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Those 4' strips are 40V so you'll only be able to run 4 on an HLG 240-1400 that's Max is 179V. Just run 8 in 2 parallel circuits of 4 in series per fixture and you'll be at 700mA, halving the 1400. This way, you won't even have to worry about heatsinks at all. Just 2 22" & 44" pieces of angle aluminum at the ends to mount them to and 2 side rails to make a rectangle for structural integrity.
Grab a second driver and build a second one and you'll be in business with high lumens per watt at 700ma.
 
1

1212ham

Well-Known Member
Krytend said:
Will angle aluminum work from home depot ? I know the prices are shitty but I do have a card there.
Click to expand...
Krytend said:
Hypothetical if I run them without a heatsink will they run hotter ? Also what would I mount them too. Thanks for the help I feel like a noob with the strips stuff.
Click to expand...
They will run warmer, not hot. Test current is 700ma and people run them at 1050ma with no heat sink, nothing. I think I once measured 115F at 700ma with the strip suspended in still air. I've hung individual strips with string and hung strips in the corners by the wires. Maybe @Chip Green will chip in. ;-)

You could make a simple square or rectangular frame from aluminum angle or wood and suspend the strips on it. Just add a support or tweo down the middle to keep the strips from drooping in the middle.
Thermal tape is an easy way to mount to aluminum.
 
Krytend

Krytend

Well-Known Member
Airwalker16 said:
Those 4' strips are 40V so you'll only be able to run 4 on an HLG 240-1400 that's Max is 179V. Just run 8 in 2 parallel circuits of 4 in series per fixture and you'll be at 700mA, halving the 1400. This way, you won't even have to worry about heatsinks at all. Just 2 22" & 44" pieces of angle aluminum at the ends to mount them to and 2 side rails to make a rectangle for structural integrity.
Grab a second driver and build a second one and you'll be in business with high lumens per watt at 700ma.
Click to expand...
Awesome just to double check buy another HLG 240 aluminum for a frame and how many strips would I need total of the 4 footers?
 
Airwalker16

Airwalker16

Well-Known Member
Krytend said:
3000k right ?
Click to expand...
That's your best bet for strictly flowering light. Plus you get quantity discount after 10 so that's kinda nice.

Edit: well you USUALLY get a discount but I just went and double checked the link for them and it's looking like minimum order quantity is 100. :/
So maybe you'll need to use 2' ones and just do 2x 8 in series circuits per fixture.
32 total for both fixtures.
This way will actually give you a far better spread of light and make your build way more sturdy. You'd just build it like rungs of a ladder.
Be sure to space them slightly closer together as you get to the edges though. It helps tremendously to even out ppfd.
 
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