4 qb288 on 1 hlg 240 48ab?
- Thread starter CraigMk
- Start date
Cousin Bo
Well-Known Member
I think it would work if you ran them in parallel but am not positive. Why don't you just turn them down? They have dimmers don't they?
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CraigMk
Well-Known Member
It's a pretty stupid question really but I don't know very much about this "hobby" at all.
I connected the 4 boards together with 1 driver and it was obviously way brighter but I wasn't 100% sure that it was safe.
Wanted to know some opinions
Sound
Cousin Bo
Well-Known Member
I would have just dimmed them so each is running at half power. I missed that you could dim them.
Rocket Soul
Well-Known Member
Yes you can do all 4 boards on one driver, its better than 4 boards on 2 dimmed drivers for efficiency. Dimmed driver are less efficient than on full power.
CraigMk
Well-Known Member
Ok thanks.. I did add the other 2 boards the other night and it worked fine,it was way brighter but was unsure on safety.
Is the 240w split evenly between the 4 boards?
Is there anything I should keep an eye on like heat? I have 120mm fans on top of the heat sinks to help
.
Thanks.
Rocket Soul
Well-Known Member
No issues with doing this as long as the boards have same voltage. 60w each. Fans are probably over kill; those sinks are designed to handle 240w so 120w should be easy.
CraigMk
Well-Known Member
Ok thanks. For the space and height I have just the 1 driver n 2 boards should be enough but 4 gives a better spread of light.Yes, the power is split evenly between the 4 boards
Don't worry about safety issues, Mean Well's got your back with several built-in safety features, and if you wired it wrong one or more boards simply just wouldn't turn on, so it's pretty foolproof
Does more Watts equal more bud ? Can I get good results with 4 boards @240w
Reekwind
Member
Yes, more light equals more/better bud but with a bit of training and topping you can get a level canopy, and then have the lights close to the plants.
Rocket Soul
Well-Known Member
I dont think thats actually correct, the diablos red diodes (samsungs rather than previous crees) cannot tale reverse current and wil fry if you wire it the wrong way. At least its what i recall from the time when hlg changed up and stopped selling the diablo as a loose board direct ro clientsYes, the power is split evenly between the 4 boards
Don't worry about safety issues, Mean Well's got your back with several built-in safety features, and if you wired it wrong one or more boards simply just wouldn't turn on, so it's pretty foolproof
CraigMk
Well-Known Member
Ok quick question...2 boards powered by 1 hlg 240 48ab is drawing 245ish and the 2 boards n heatsink are hot but touchable..
I have added the other 2 boards and connected them by attaching the wires in the connectors spare on the board so from the driver the 4 boards are wired the same in line..the light has obviously increased but the power from the wall has gone down to 233w.. is that normal?
I have added the other 2 boards and connected them by attaching the wires in the connectors spare on the board so from the driver the 4 boards are wired the same in line..the light has obviously increased but the power from the wall has gone down to 233w.. is that normal?
Rocket Soul
Well-Known Member
Yes. When you run each board softer its forward voltage is a bit lower but max out current stays the same