Lighting Help matching bulb to driver

[iampepe]

You can use just one 36v cob. Im not sure why its flashing. Driver is trying to power it up obviously. Are you putting the second 36v cob on the same driver as the first?

Sent from a galaxy far away...

 

[dragondust]

Thanks, so would this cause an issue say if you had one COB rated at 36v going to this driver alone? Just weird that I swapped one out for a 50w 36v rated cob (cheap chinese made not a main brand, so not great I now learn), one is running fine but when I swapped the second out, it just flashes:-

https://www.autoflower.org/threads/help-issue-swapping-cob-with-prakasa-cob-light.57759/

Do you have a volt meter?

 

[Sensi Jay]

You can use just one 36v cob. Im not sure why its flashing. Driver is trying to power it up obviously. Are you putting the second 36v cob on the same driver as the first?

Sent from a galaxy far away...

I didn't think I was, here is a pic of the current situation internally:

Bottom left works fine and has done but top right just flashes.

Do you have a volt meter?

No mate, which doesn't help.

 

[woody]

Hey mate not sure if anyone from kingbrite or alibaba got back to you but heres a quote i got a while back

It would cost more but you could order a meanwell driver like a 185-1400 for 35 quid and run 4 36v crees or citizens for a 200w draw with more efficiency?

Im still trying to get my head round it all too at the min, but they claim this light is 200w real draw? Is that even possible with those driver specs if those are 72v chips at 520ma that makes 37.44w each.

 

[pop22]

if its flashing, the driver has too much load on it, probably can't supply enough voltage

You can use just one 36v cob. Im not sure why its flashing. Driver is trying to power it up obviously. Are you putting the second 36v cob on the same driver as the first?

Sent from a galaxy far away...

 

[pop22]

they can't even tell the truth about actual draw...and they'd tell you your meter was bad.........

Hey mate not sure if anyone from kingbrite or alibaba got back to you but heres a quote i got a while back
View attachment 719440
It would cost more but you could order a meanwell driver like a 185-1400 for 35 quid and run 4 36v crees or citizens for a 200w draw with more efficiency?

Im still trying to get my head round it all too at the min, but they claim this light is 200w real draw? Is that even possible with those driver specs if those are 72v chips at 520ma that makes 37.44w each.

 

[iampepe]

Im sure pops is right, not enough voltage. Poor quality drivers.

Sent from a galaxy far away...

 

[dragondust]

I didn't think I was, here is a pic of the current situation internally:

View attachment 719415

Bottom left works fine and has done but top right just flashes.



No mate, which doesn't help.

Try swapping the driver from the working one to the blinking one. And see if the blinking follows the driver or cob.

Sent from my LG-D801 using Tapatalk

 

[dragondust]

Buy a cheap volt meter. I think its needed on these cheap drivers to see what they really put out.

Sent from my LG-D801 using Tapatalk

 

[Sensi Jay]

Thanks all, need to do some testing to figure it out. Yeah seems dodgy rated as 50w actual when it can max do 37w, must be crappy drivers.

Don't buy Chinese friends..