The other day i recieved another LED backlight kit identical to the one presently in my Cintiq 24HD, but it snapped in the mail as the seller somehow thought it was ok to mail inside a long card rectangular box, no packaging whatsoever, i recommend avoiding ebay for your kits even though its cheaper, on aliexpress they mail it in a PVC pipe, or cardboard pipe, or the strips come in tubes with the driver and surrounding packaging going in a bag or box or something.
Anywho, i began testing them and to my shock, sort of, the LEDs sit comfortably between 600 and 800ma, which is reached at about 9.5v or so. EACH, up to 800ma EACH. While i have not tried to measure the driver output, the input hangs around 500-600ma regardless of the voltage. It seems to cut the excess voltage above 10v as heat, as ive mentioned in a previous entry.