Replace Q5 led bulb for Surefire 6P 9P G2 C2 Z2 M2 P61 G3 Lamp Torch Flashlight Size(mm): 26(Diameter)*37mm(H) Mode:1-mode Operating voltage: 3V - 9V Working Current: 450 - 600mA Output: 350 lumens Durable aluminum reflector Compatible for: NOTE: To use with all Surefire, remove outer (large) spring from base of lamp Confirmed fit for Surefire 6P, 6Z, 9P, 9Z, Z2, Z3 Confirmed fit for Surefire G2, G3 with occasional modification required - SEE BELOW for instructions Reported to fit: Surefire C2, M2 Series Modification for use with Surefire M951 & 952 - SEE BELOW for instructions Confirmed fit: Solarforce L2, L2M, L2P, L2T Confirmed fit: Pelican M6 Series Confirmed fit: Ultrafire and similar 501B, 502B, 503B, 504B Reported to fit: Ultrafire G60, G90, G120 Reported to fit: SpiderFire L2 Series, G&P T-6, T-9, R12, , Hugsby S3, M2, G2