DiY LEDs - How to Power Them
- Thread starter SupraSPL
- Start date
yes ofcourse we are> 
RangiSTaxi
Well-Known Member
RangiSTaxi
Well-Known Member
After so many years of using Cree 3590s and now HGL 550s Ive forgotten what a HPS grow looks like, feels like, my memory was it yielded great, quality was great, but would going back be like giving up my smart phone for a dumb phone, i dont know.
The reason i moved to leds initially was hopefully less heat, not sure theirs much noticeable difference real life for me , passive cooling really was the big winner, no bloody noisy fans, hell those blupurples drove me nuts with their fans, and those kind leds were unreliable as hell.
remember these, lest we forget.
The reason i moved to leds initially was hopefully less heat, not sure theirs much noticeable difference real life for me , passive cooling really was the big winner, no bloody noisy fans, hell those blupurples drove me nuts with their fans, and those kind leds were unreliable as hell.
remember these, lest we forget.
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chatoo123
Well-Known Member
Hi guys I am trying to find out if I got ripped off from a seller on Alibaba well anyways I bought a quantum board 240 watt 288 boards with lm 301b top bin supposedly well it came with a hlg-240h-48b well I hooked it up and I put a digital ammeter on it well I turn it all the way up and it reads 231.9 watts 45.38 volts an 5.09 amps. Well this is what I'm frustrated about I have a extra hlg 185h-48b so I decided to hook that up to one board just to see and it goes all the way up to 225.5 watt and 47.20 volts and 4.78 than I hook up both it says 216.5 watts and 45.20 volts at 4.79 amps. Then that same one board I hooked the 240 up it goes to 231.6 watts and 47.27 volts at 4.92 amps why does the 240 not go higher when I hook up both boards why doesn't it go to the same 47.27 and go up to the full 5 amps or more?? Will someone please help me out with this it just makes me question the driver if it's a real meanwell they said 5 year warranty I thought meanwell has a 7 year warranty on the 240h series
chatoo123
Well-Known Member
It could be the dimmer pot, try disconnecting one wire and check power. Meanwell specs call for 10-100K dimming resistance, but many pots are actuality under 100k due to manufacturing tolerances.
Adding a 10k resistor in series with the pot ensures the resistance range is above the 10k minimum and over the 100k required for 100% output.
https://www.rollitup.org/t/meanwell-led-drivers-3-in-1-dimming-function.838760/
Rocket Soul
Well-Known Member
Has anyone tried the meanwell xlg range, specificly the L and M wide voltage range versions. Im still trying to figure out how these constant power drivers work. Do they adjust their max output to how much of voltage load you put on them?
cobshopgrow
Well-Known Member
cc driver adjust heir voltage accordingly, the more leds you connect in series the higher the voltage goes.
hope that helps a bit
hope that helps a bit
coreywebster
Well-Known Member
Last edited:
Innob
Well-Known Member
This would be an upgrade for a micro grow.
Around 50-60 watts is perfect for my needs to flower, I currently run a Vero 18 on a lpc 60 1400 and it cooks my plants for the first 2 weeks unless I raise it very high and height is an issue.
For an upgrade I wanted to spread out the light source and have an option to dim.
coreywebster
Well-Known Member
Makes more sense!
Have you considered strips?
Innob
Well-Known Member
I haven't.
I've looked into a few other options like a quantum boards but most are a bit too big.
Main reason for the cob build was that I have a tiny bit of experience with them so I figured it would be pretty straight forward.
Armyofsprout
Well-Known Member
have a Meanwell HLG-600H-48A driver I'm trying to hook up to.4 QB288 boards. They have an extra lead I have no idea what to do with and can't get it working. Please help. I will post pics. The drivers I've used before only have one positive and negative lead but this driver has two.
