Discussion in 'LED and other Lighting' started by SupraSPL, Feb 22, 2014.
I would like help choosing a driver or drivers to use with these strips. Grow space is 4 x 2.5 and I'll be using an old four bulb t8 fixture as heatsink and frame.
Thanks for any help offered.
Won't allow me to share a link........ they are ACUITY LITHONIA 5000K LED light strips from AC light fixture sold in 8 packs on ebay for 23$. I would like to use 16 of them.
Most of their lights are under 100lm/W. A waste of time and money.
Exactly. Specially considering you can do those numbers with store bought led light bulbs with the diffusers removed for about a buck a bulb.
You need more than 40 of the fuckers to come close to a 400W's lumen output.
I thought I was finding the same strips used in the above build. Somewhere in the thread iirc he was expecting more like 150/lm per watt. Feel free to suggest other options that aren't far off that price point.
Is this parallel wired?
Based on what I think your diagram shows I'd say it looks correct.
I was 99% sure
Anyone tried running 3x Vero 29 B (52v) on a HLG-240H-C1750? The driver has a max output of 146V but 52v * 3 = 156v needed for the cobs. I know the meanwells usually will run 10% higher than rated but not sure if that is more current or voltage or both. Anyone tried it?
I never worked with this driver, but i guess and estimate, that you are hard on the edge...specially with a cold start in the (winter)morning, you risk to see your leds blinking...and your driver is not able to build up enough voltage to drive through 1,75A -
normaly it helps to dimm down the current a bit, but...
i would feel safer with HLG-240H-C1400 --- or eg. a combination of 2VeroB + 1VeroD
To pull out the max. of a driver you need to bring Vf of your design close to the max. of open circuit voltage. (your drivers over voltage protection = 150-165V)
The last time i did was with ELG-240H-C1400A / DC 86-171V
in little 3V steps i pushed Vf to a max. of 179V @ 1400mA adding 3W chips to the design.
my powermeter showed 270W (-20W for the driver) = 250W max. on the wall
Mean Well datasheet for this driver shows 239,4W rated power ---> only 4,4% more watts increasing the voltage close to the max. @ stable current.
@ 25° chip temp. you will need 3 x 1750mA * ~51,8V = ~272W
and your driver is rated 250,25W +/- ?%
Hope this helps to make a good decision
Been reading for days and am getting closer to a purchase but every day I read a new thread I get a different idea. Hoping someone could lend a hand.
I'm building a kit for a 7 square foot room, 1-2 plants, thinking of 4 or 5 CXBs 3500ks on a HLG-240H-C1400A. Is that enough light? Was looking into CXM22s or the Vero 29bs too but they're 50v I think. Can I power 4 or 5 of them with the HLG-240H-C1400A, or do I need to go bigger or do only 4 cobs? I just want to do passive cooling. Thanks for any advice.
Had this sitting in the back of my closet collecting dust. China led. How many Citizen CLU048-1212 90CRI can I power with these?
2 or 3 in a row --- if you want higher efficiency
wire as many rows in parallel as you like
The China light came with three of those, and only have four COBs. Is that over kill on the COBs?
three of what ? --- do you mean 3 of those^ drivers for 4 x CLU048-1212 ???
then you should use only 2 drivers to drive 2 x 2CLU048 in series.
have a look to the datasheet - and you see, that your 4 chips will drive out a total
~ 65W @ 500mA (<20% of max current) very good efficiency and no risk at all.
but never connect a single chip CLU048 to that driver
thanks for answering all my noob questions. So I've got four CLU048's, the two drivers out of three, and a small pc fan. also, the china light came with a smaller driver to power the fan. would you be able to show me how to hook this all together??? a diagram maybe, if possible.
2 in series means:
wire output DC+ to + of your chip
then wire from - of this chip to + of the second chip
then wire - of the second chip to DC- of the drivers output
spent some time to learn the basics in the internet -
before you risk and electrocut your life
Hi guys, any advice for a good single driver setup with only one Vero 29 Gen 7 (BXRC-30E10K0-C-73)?
Is there a driver that can power it @1050mA, ~70W?
Many thanks in advance!
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