Unbranded LED retrofit lamp teardown 1: The LED's

I got two of these 18w 1200mm 5800k unbranded LED retrofit lamps with an LED Lightpack which I got to convert back to MCF.
I have no use for them so I decided to open one and see what makes it tick. I used unreasonable force to open it so it's pretty much scrap but they were screwed together.

Here you can see the actual LED SMT dies mounted on a PCB which is then mounted on an extruded aluminium section which slides into rails moulded into the side of the plastic outer diffuser.

Each LED drops 3 volts and is being ran at about 1.25 milliamps.
There is 96 LED chips in total which are mounted in two parallel strings of 48 LED's in series and I measured 144v DC being output from the driver.