Single LED or Multiple smaller LEDS is better
- Thread starter Hammer_time
- Start date
freemanjack
Well-Known Member
Luxeon gen 3's are quite remarkable, as are the new vero's, all our kit is hot off the press, bleeding edge kit, might be the difference, or we might just be shit at growin under hps? never discount 'ignorance theory'.
Hammer_time
Member
i totally agree, when you factor in all the requirements, efficiency, coverage, yield etc, LEDS are ahead now days.
prices coming down also make them more afforadable and a consideration for HPS users.
Its just getting around and understanding wattages, volts etc to piece it all together....but in saying that the advise offered on here by all, is second to none. and above all being accept as a nob is sincerely appreciated also.
prices coming down also make them more afforadable and a consideration for HPS users.
Its just getting around and understanding wattages, volts etc to piece it all together....but in saying that the advise offered on here by all, is second to none. and above all being accept as a nob is sincerely appreciated also.
VenomGrower6990
Well-Known Member
Citizen has 52V chips too.
Hammer_time
Member
what does that mean 52V chips to? sorry for the silly question.
VenomGrower6990
Well-Known Member
Citizen has cob chips that have a Forward voltage of 52Volts and 36Volts. Where most of the Cree chips are 36Volts.
VenomGrower6990
Well-Known Member
One way to look at the Forward voltage for a chip and Drivers is if you have a 36volt chip running @1.4amps it will be around 50 watts. The same 1.4amp driver will drive a 52volt chip at about 72 watts. Its Forward voltage of the cob chip times the driver amperage equals the wattage it will run. (36Vx1.4amps=50.4 watts). Same formula for the different Forward voltages on different drivers.
ttystikk
Well-Known Member
Thank you. This is my life's work.
ttystikk
Well-Known Member
Johnson Grow Lights. Put him on your short list.
Hammer_time
Member
so by using the same driver to run a 54v chip at 72 watts means you would have to run less Chips on the 1.4amp driver?
and using the same driver (1.4amp) and lower "V" chips you can run more lights on the same driver?
does running them at higher watts still keeps there efficiency? or am i confusing the efficiency part now because being a 54V chip its efficiency level is at 72 watts already? (working from the formula you mentioned above 54v x 1.4amp)
I have read somewhere, silly of me not to have bookmarked it, that there is a efficiency break even point. Running a COB at over 50% power reduces there efficiency? draws more power with not much return? Sorry if it sounds mixed up, was something along those lines.
How do you work out when the driver max's out? (as in how many lights you puit on it/run off it) Do the driver have a "WATTS" max output and thats how you select the driver? Do the drivers have anything to do with efficiency or is it the Chip (COB LED)? Is the drive just to power the Chips?
and using the same driver (1.4amp) and lower "V" chips you can run more lights on the same driver?
does running them at higher watts still keeps there efficiency? or am i confusing the efficiency part now because being a 54V chip its efficiency level is at 72 watts already? (working from the formula you mentioned above 54v x 1.4amp)
I have read somewhere, silly of me not to have bookmarked it, that there is a efficiency break even point. Running a COB at over 50% power reduces there efficiency? draws more power with not much return? Sorry if it sounds mixed up, was something along those lines.
How do you work out when the driver max's out? (as in how many lights you puit on it/run off it) Do the driver have a "WATTS" max output and thats how you select the driver? Do the drivers have anything to do with efficiency or is it the Chip (COB LED)? Is the drive just to power the Chips?
Hammer_time
Member
Really, we should be thanking you for sharing it with use and passing on your knowledge to others. Id be really proud of that and your accomplishments. It always needs one to lead, at least you are doing it, done it, and know it...
Certainly some tasteful reading and learning. Awesome work ttystikk.
VenomGrower6990
Well-Known Member
Hammer_time watch this video it explains a lot. His channel has Tons of info for the LED DIY Cob community.
Hammer_time
Member
thanks heaps Venom, im gonna stay up and watch as many as i can before i crash.
thank you kindly for linking this. really appreciate it.
thank you kindly for linking this. really appreciate it.
VenomGrower6990
Well-Known Member
No problem man. Hope it answers most of your questions and then you can go from there.