Lighting a 4x4 on the low low.

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.
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.
 
Will angle aluminum work from home depot ? I know the prices are shitty but I do have a card there.

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.

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.
 
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.
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?
 
3000k right ?
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.
 
Last edited:
Back
Top