DIY Led cool tube with Cree COBs, what do you think?

dandyrandy

dandyrandy

Well-Known Member
tsharp513 said:
Thanks for the input fellers. So is it general consensus nowadays to use as few drivers as possible vs. one driver per COB?

DandyRandy, I've been looking into sail switches for use as a failsafe, I found THESE switches that are relatively cheap but only designed for 1A. You said you use relays Randy, could you explain your configuration, or suggest any specific components?
Click to expand...
I have a 24v relay with contacts rated at 10 amps 120vac. 4pole. Coil is 24 vdc. I used a small switching supply rated at 24 volt 1 amp. This was mounted in a new construction double box. The supply has ac mains all of the time, fuse protected etc. 24vdc goes to the remote Sail switch contact and picks up the relay when enough air flow occurs. The contacts are paralled for more current BTW. This supplies ac to the light fixture when the relay is picked up. Of course fusing etc is required. I recommend a gfci. I trimmed my sail for my application. It is mounted in a Y. I'll try to get a pic when they wake.
 
tsharp513

tsharp513

Active Member
dandyrandy said:
I have a 24v relay with contacts rated at 10 amps 120vac. 4pole. Coil is 24 vdc. I used a small switching supply rated at 24 volt 1 amp. This was mounted in a new construction double box. The supply has ac mains all of the time, fuse protected etc. 24vdc goes to the remote Sail switch contact and picks up the relay when enough air flow occurs. The contacts are paralled for more current BTW. This supplies ac to the light fixture when the relay is picked up. Of course fusing etc is required. I recommend a gfci. I trimmed my sail for my application. It is mounted in a Y. I'll try to get a pic when they wake.
Click to expand...

Thanks for the explanation, seems pretty straightforward. A pic would be awesome dandyrandy!

Ordered me some SINKS on ebay, $22 for 5 cpu coolers shipped from the US!

Got the high bay for $180 new, as far as LPW output you need to take into account the efficiency of the included driver. Usually 85-90% so 24,000LM / (240w x .9) = 111 LPW
I'm sure they run hot with no fan so that cuts efficiency but they are CXB leds so even if they are the lowest bin they should still be very efficient.
 
You must log in or register to reply here.
Top