COB projector / Upgrade

vamoz

Member
Hi guys,

I am currently using Cidly Led panel aswell as CFL's for my grow. I have a faulty channel on my LED which made me add CFL's.

I wanted to share an idea for feedback, to see if it's possible or a smart move...
IMG_8713.JPG IMG_8712.JPG
I wanted to buy one of these 200 watt COB projectors for flowering. They are 50w chips each, Chinese chips. But they are from a manufacturer in my hometown. So any problems and I can just send it back... OR, I was thinking about buying CREE panels and taking the old ones off. If thats possible?

It will basically be a DIY COB. I wont go around to look for all the parts to build it since this device is already working. I will just change the COB's. Is that possible? (these things are pretty cheap here, hence it made sense to do it this way)

Also the unit doesn't have fans but has a big heatsink, you think that will be sufficient?


Thanks.
 

Boatguy

Well-Known Member
It would be more work to modify that fixture than to build one from scratch.
You would have to use a meter to sort out the voltage and amperage, and determine if they are wired in series or parallel.
Find a suitable replacement cob that suits that output.
Desolder those cob's and find a way to attach the new ones.
 

Nugachino

Well-Known Member
It's either that. Or figure out what the driver in that light can do. Then match up a cob to run it with.
 

vamoz

Member
Uh huh. I get it. Well damn. But still, this device and more like it are around 30 to 50 dollars here. So I dont think I can go wrong with a 200 watt 2700k projector to add on my flowering I think. And if it breaks it breaks...
 

Nugachino

Well-Known Member
Exactly like @Boatguy said. They're probably not the wattage marked on the box.

That's just how it is with cheapo stuff from Superhappygoldenlucky Land.
 

vamoz

Member
I would guess that fixture is a 200w equivalent, so more like 50 to 75 true watts.
I don't think so? There is a picture where they use a voltage meter plugged into the outlet. Shows 220 0.53. I can't share the picture unfortunately. Has identifying stuff on it.
 

vamoz

Member
Pics or a link?
IMG_8716.JPG Here ya go. I am really bad with this stuff so thanks for all the help. I blurred the pic. Basically shows 220 and 0.53.

It says that "you will see the wattmeter pictures on the profile, we use Genesis brand led chips"

75 LM/Watt 16250lm
 

Randomblame

Well-Known Member
If that's four 50w generic COB's(33v/1,5A) on separat drivers they are interchangable with any other 36v COB, at least driverwise. It depends on the driver used in this unit. Could be 4x 1,5A setup, or 2x 3A(2x2 in parallel) or one 6A driver(4P), but first solution seems the cheapest and most probably.
4 CLU048-1212 gen. 6 will work and push the lumen output from creepy 75 to awesome 140lm/w, with 1,5A drivers at least. And the better effiency of the 4 Citi's leads to much less heat production and much cooler case temps.

I've converted a few smaller 10, 20 and 50w units with success, so why not?
 

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vamoz

Member
If that's four 50w generic COB's(33v/1,5A) on separat drivers they are interchangable with any other 36v COB, at least driverwise. It depends on the driver used in this unit. Could be 4x 1,5A setup, or 2x 3A(2x2 in parallel) or one 6A driver(4P), but first solution seems the cheapest and most probably.
4 CLU048-1212 gen. 6 will work and push the lumen output from creepy 75 to awesome 140lm/w, with 1,5A drivers at least. And the better effiency of the 4 Citi's leads to much less heat production and much cooler case temps.

I've converted a few smaller 10, 20 and 50w units with success, so why not?
Ohh wow. Thank you. I will look into it, maybe message the company too.
 
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