Led grow light diode replacement help

[Shelby.elrod22]

I was given some grow lights with multiple diodes that burnt out some even melted my question is how do I figure out what wattage diodes I need the light has no brand name or anything on it thanks

 

[kellys_eye]

Got any pictures? Your question is 'meaningless' without them.

 

[Shelby.elrod22]

Yes

 

[Alec_t]

Your LED light specifies mains AC input, 1200W, whereas the LED Driver puts out DC at 21-36V, 1.5A max. Clearly the LED Driver is not intended for that light.

 

[Shelby.elrod22]

That is the driver it came with maybe the 1200 watt claim is false

 

[Shelby.elrod22]

There is 5 drivers total

 

[kellys_eye]

How many LEDs are there in total (including all the burned out ones)?

 

[Shelby.elrod22]

120 lights

 

[kellys_eye]

If there is only ONE driver unit (the one labelled 50W) then each LED will have a power of 120/50 or approximately 0.5W (to be on the safe side it is recommended that you use somewhat LESS LED wattage than the driver can provide so, more accurately speaking, the LEDs should be nearer 0.3W or 0.4W to give a total wattage of 120 x 0.3 = 36W, or 120 x 0.4 = 48W)

Whatever - all you can fit is a total of 50W assuming that 50W driver is the ONLY ONE.

If there are 10 or 12 LEDs PER DRIVER (assuming there's more than one.....) then each LED will be rated at around 4 or 5 watts.

They LOOK like 1W LEDs but looks can be deceiving.

You should gather from the confusion that abounds in this thread that telling us EVERYTHING about your setup is the only way to get the right answer.

So - how many drivers?

 

[Shelby.elrod22]

There are 5 drivers total

 

[kellys_eye]

Five drivers (each 50W?) = 250W total available.

120 LEDs.

Maximum power PER LED is 250/120=2 (as near as we need) so the absolute maximum per LED (assuming they are all identical) is 2W.

They look - to me - like 1W LEDs though - something like these: https://www.ebay.co.uk/itm/10-X-Hig...493035&hash=item489c8aa682:g:xYEAAOSwd4tUGFOB

which could be fitted with no problem (get the right colour though).

 

[Shelby.elrod22]

Ok thanks very much how did u figure that out as I would like to try to understand this stuff a lil more I have zero electric repair experience and want to learn thank u everyone for their time

 

[Shelby.elrod22]

One other question then the stick that says led power 1200 w is that a false claim then or are they saying the leds equal that compared to a normal light

 

[kellys_eye]

are they saying the leds equal that compared to a normal light

That's more the case - they certainly don't consume 1200W themselves!

 

[Shelby.elrod22]

Ok thanks again so much for ur time it means a lot

 

[BobK]

You show two different drivers. What are the other 3? I suspect someone replaced one or more of the original drivers with ones of higher output and that is what caused the failure.

Bob

 

[Shelby.elrod22]

One pic is a power supply the other that says led driver is the the driver that matches the other 4 it was a very cheap light to begin with