Hi everyone. I have built my first light using this driver. It is roughly 2x4ft and is being used for a mother/clone tent. It has 15 bridgelux strips on this and I have wired the first 7 strips in a group and the remaining strips inal another group. ( Hope that makes sense as I followed a diagram off here).
However the driver makes a high pitched noise when dimmed low or high it's actually very annoying. It is not the driver as I have already received a replacement today and it is still making the same noise. Any help would be massively appreciated. Thanks
XlG 240 H AB
Appears to be a wiring and LED Driver selection / application issue...
XLG-240-H-AB Datasheet... https://www.meanwell.com/Upload/PDF/XLG ... 0-SPEC.PDF
The LED driver provides;
a. 240 Watts at ~ 27 - 56 Vdc, which is
b. two (2) BXEB-L0280Z LED Strips wired in series with seven (7) Parallel groups, 2S/7P.
The Fourteen (14) LED Strips are;
a. ~ 7.0 to 14.0 Watts at ~ 20 Vdc each and
b. ~ 98.0 to 196 Watts at ~ 40 Vdc (2 strips wired in series)
IMO, Your LED Driver appears to be oversized and also not wired correctly based on your description. Good luck.
XLG-240-H-AB Datasheet... https://www.meanwell.com/Upload/PDF/XLG ... 0-SPEC.PDF
The LED driver provides;
a. 240 Watts at ~ 27 - 56 Vdc, which is
b. two (2) BXEB-L0280Z LED Strips wired in series with seven (7) Parallel groups, 2S/7P.
The Fourteen (14) LED Strips are;
a. ~ 7.0 to 14.0 Watts at ~ 20 Vdc each and
b. ~ 98.0 to 196 Watts at ~ 40 Vdc (2 strips wired in series)
IMO, Your LED Driver appears to be oversized and also not wired correctly based on your description. Good luck.
Its not clear how you have them wired, can you point us to the diagram you used?
Sounds like you have them wired all in parallel.
Based on the specs alone, that XLG driver cannot do the low voltage that the strips require, ~20V versus 27V. But based on the test report, the driver can go down as far as 12.3V, which should work fine.
Try wiring the strips in 2S7P instead?
Based on the specs alone, that XLG driver cannot do the low voltage that the strips require, ~20V versus 27V. But based on the test report, the driver can go down as far as 12.3V, which should work fine.
Try wiring the strips in 2S7P instead?
As mentioned, you could wire the LED Strips in Parallel as shown in your diagram But only if the driver was ~ 20 - 24 Vdc output, equivalent to the Vf (Forward Voltage) of the LED strips.
An HLG-240H-24AB could power even or odd numbers of Parallel wired LED Strips.
So if I was to wire them in 2s7P would that be similar to the diagram Peter has posted?
Ideally I'd like to use this driver if possible as I'm going to end up with 3 drivers then and the light would of cost way over budget... obviously if It can't be done or unsafe il change the driver.
Ideally I'd like to use this driver if possible as I'm going to end up with 3 drivers then and the light would of cost way over budget... obviously if It can't be done or unsafe il change the driver.
. I can include a photo or the all the strips also. Worst thing is my mother's look like shit