You need a soldering iron, some solder, some thin wires, and a philips screwdriver for this mod. I wouldn’t recommend it if you’ve never opened a light before and done soldering. There’s some detailed points you have to be accurate with when soldering and it was a bit tricky at times for me in spite of me having some soldering experience in the past.

Do you have a D18?

For the mod: you open up the bezel of the light, remove all the little optics, unsolder the wires connected to the main led board, remove the main led board.

Next you remove the reverse polarity ring on the battery side of the driver which reveals the driver screws, remove those screws and pull out the driver, connect the two lighted pcb wires to two traces on the driver, and pull all the wires up and out through the hole mcpcb shelf.

Next you connect the four wires to their respective places on the MCPCB board as well as the lighted circuit board, assemble everything, and you’re done!

A bit tricky overall but it was a fun experience for me.

If you don’t already have a d18, but want a pop can light with lit up LEDs, consider the Rot66v2 or the MF01S. They’re not exact substitutes but pretty close to the D18.