Help me please

if this is the wrong place to put this move it , i dont normally write in forums.

i need to know if i can run six of BXEB-L1190U-50E3000-C-C3‎
on driver XLG-240-L-A‎ and in what configuration they need to be wired to run them all at 700ma.

i seen this on the datasheet and mentioned in forums :
" This product has been designed and manufactured per IEC 62031:2014. The working voltage designated for the insulation is 60V d.c. The maximum allow-able voltage across the module must be determined in the end product application. "

this means it cannot be run in serial because the voltage would be too high with 6 of them?

thanks alot

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That note in the datasheet refers to the strength of the electrical insulation that exists between the LED circuit on the top of the board and the large (conductive) aluminum strip on which it is built. That aluminum strip is typically connected to a heat sink of some kind, which in turn is often connected to some conductive part of a light fixture that can a user could physically touch.

The input and output of LED drivers of the type mentioned are generally isolated, meaning that there is no direct electrical connection between them. In theory, this would allow a 6 of the BXEB-xxxx light strips to be driven using the XLG-xxxx driver IF there is no connection whatsoever made between the aluminum substrate/heatsink and any point in the circuit on the output side of the driver. If such a connection does happen, for example to the negative output of the driver, the positive side of a 6-series string of those LED strips would then be at about 240V relative to the heat sink, with insulation rated for only 60V between them. Which of course, would not be a good thing…

thanks for the reply…
that strip doesnt have an aluminum backing.but i do plan on attaching it to aluminum.

can those be run off that driver in parallel or does that make the amp per board lower? i want to run them at 700ma minimum.

That so? Poor assumption on my part then. It’s definitely preferable from an electrical standpoint, but probably not so great from a thermal management perspective. Regardless, that note in the datasheet is telling you not to relay on the board’s insulation for more than 60V. If the mounting surface is totally clear of anything conductive, then fastener heads and the like would probably be your next concern.

You need to match the forward voltage of whatever LED load you create/choose to the output range of the chosen driver, so no: connecting a half-dozen of the LEDs strips in parallel to the driver mentioned would not work. A series arrangement would appear to be electrically viable though, so long as a person is mindful about insulation/safety concerns.

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forgive me im new to this whole LED thing and the most ive wired up before is magnetic ballasts.

How do u wire in series where the entire voltage isnt sent through the boards? from what ive read so far wiring in series sends the entire voltage through each board?
from what ive read you take the positive output from driver to the positive on the first led then u connect the negative on the first board to the positive of the next board and continue it along until the last board where u connect the negative to negative output from the driver. is this what you mean be series?

From how I am reading the data sheet, the power supply part number XLG-240-L-A should work for the 6 strips in series and strips are connected in series with + to + and - to -. Even though the power supply voltage is around 240 vdc, each board is only seeing about a 40 volt drop. The technical reference number is t291

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ill give it a try and see if it works.


yup it works.

with the LO Adj screw on the lowest its pretty dim and when i turn it up all the way it shuts off. when i go to just before it shuts off the driver makes a kind of high pitched noise, its this normal?

It started flashing sporadically after heating up…

each light in series is visibly weaker than the one before it. i dont think it has enough power…

is there a way to wire this to make it work or do i have to return the driver for a constant voltage and wire it in parallel?

would wiring it up like this work?

yup i wired it up like that and its much brighter and uniform .