This project combines parts from SRK style lights and a Boruit RJ-2013 style light to create what I hope will be a high performance light at a price far less than anything comparable that’s on the market. The RJ-2013 head is grafted to part of the SRK head and will use two battery tubes, a SRK V2 fet driver, XHP70 N2 5A, and powered by 8x NCR18650B in a 2S4P configuration. Target current is 8 amps. Photos will be added as stages are complete.
Stage 1: The head
The pieces were sanded to create a tight press fit with JB weld applied to both inner and outer surfaces. The switch portion of the SRK head was tapped into place in the RJ-2013 head and allowed to cure. The seam is covered by a black silicone o-ring from the RJ battery tube and is no longer visible. Here’s the new head next to a standard SRK.
The RJ-2013 style light was unmarked and purchased on e-bay. Unlike the Boruit mentioned in a thread here on BLF the one I received had a press-fit driver and the emitter was mounted on a plate similar to what is often done with srk lights. It did not have the thin screw in pill.
Stage 2: Heatsink/pill nearly complete – photos soon
Stage 3: Emitter, driver, wiring
Stage 4: Battery tube mods and coupling
Stage 5: Adapt tail switch, handle, and mount to SRK tail cap
Stage 6: Final assembly and beamshots