P60 sized LED Drop-In.  Works with a single 18650 Li-Ion battery, or a smaller 17670 Li-Ion battery.  This is the same module that is installed in the Dereelight CL1H V4 3SD R2 WG.

P60 sized LED Drop-In.  Works with Surefire(R) 6P, 9P, 6PL, C2 only if a 17670 battery is used... an 18650 battery will not physically fit into those flashlights.  To use CR123a batteries, look at either our 3SM or 1SM-2 series drop-ins.

Comes standard with orange peel (OP) reflector installed.  Smooth (SMO) reflector available for purchase separately in Dereelight Accessories section.

Outer spring is not required for use in most flashlights.  Try using the Drop-In module without it first, if it works, leave the spring off.