Greensalt
Well-Known Member
Hi Everyone,
I am in the UK and as the title suggests, I'm after some help please as my original idea of using a HLG QB144 has been dashed. Bought a suitable driver ultra cheap at £5 with vouchers and nectar points (MeanwellLPF-40-39), plan to modify an old PC heat sink and then found out that the last QB144 had been sold and currently no stock in the UK.
Now I am left with the Meanwell LPF-40-39 and the PC heatsink which is 2/3rds of a small reasonable seedling/veg light putting out a max wattage of approx 40watts BUT no actual light source.
I was thinking, could I use a COB LED such as Citizen/Cree instead?
I do not need massive output and the driver only has a max of 40watts, see below the drover specs:
As for the PC heatsink I could modify, I have taken a picture of it below and as you can see, it is a fin type. There is a flat smooth spot that measures 1.75" x 1.5" which I am assuming would be enough area to fit a suitable COB LED with thermal paste/pad.
I am not even sure if a heatsink would be needed for a COB at a max of 40watts?
So there we have it, a 36V, 1,12A driver putting out a max of 40watts and a heatsink with a nice spot to house a COB LED but which one, which brand......I seriously have no clue were to start.
Can anyone help please?
I am in the UK and as the title suggests, I'm after some help please as my original idea of using a HLG QB144 has been dashed. Bought a suitable driver ultra cheap at £5 with vouchers and nectar points (MeanwellLPF-40-39), plan to modify an old PC heat sink and then found out that the last QB144 had been sold and currently no stock in the UK.
Now I am left with the Meanwell LPF-40-39 and the PC heatsink which is 2/3rds of a small reasonable seedling/veg light putting out a max wattage of approx 40watts BUT no actual light source.
I was thinking, could I use a COB LED such as Citizen/Cree instead?
I do not need massive output and the driver only has a max of 40watts, see below the drover specs:
Operation Mode: | Constant Current (CC) | |
Output Current-Channel 1: | 1.12 A | |
Output Voltage-Channel 1: | 36 VDC | |
Output Power: | 40.32 W | |
Input Voltage: | 90 VAC to 305 VAC, 127 VDC to 431 VDC |
As for the PC heatsink I could modify, I have taken a picture of it below and as you can see, it is a fin type. There is a flat smooth spot that measures 1.75" x 1.5" which I am assuming would be enough area to fit a suitable COB LED with thermal paste/pad.
I am not even sure if a heatsink would be needed for a COB at a max of 40watts?
So there we have it, a 36V, 1,12A driver putting out a max of 40watts and a heatsink with a nice spot to house a COB LED but which one, which brand......I seriously have no clue were to start.
Can anyone help please?