DISCLAIMER: This is a one size fits most bulb, listed above are many models that this drop-in will fit. Due to unforeseen variations in manufacturer models this drop-in is not 100% guaranteed compatible. PLEASE check whether it fit for your flashlight before purchase<BR><BR> Features:<BR> High quality aluminum alloy for proper heat dispersion<BR> Features a solid-state LED with a precision smooth reflector that creates a smooth beam<BR> Special design, enhance light output for intension and distance<BR> Effective and energy-saving, low heating, long service life<BR> Convenience to install Comes with installation instructions for all listed model types<BR><BR> COMPATABILITY:<BR> <B>NOTE: To use with all Surefire, remove outer (large) spring from base of lamp</B><BR> Confirmed fit for Surefire 6P, 6Z, 9P, 9Z, Z2, Z3<BR> Confirmed fit for Surefire G2, G3 with occasional modification required(remove the larger outer spring)<BR> Reported to fit: Surefire C2, M2 Series<BR> Modification for use with Surefire M951 & 952<BR> Confirmed fit: Solarforce L2, L2M, L2P, L2T<BR> Confirmed fit: Lumaforce LF1, LF2 Series<BR> Confirmed fit: Ultrafire and similar 501B, 502B, 503B, 504B<BR> Reported to fit: G&P T6, T9, X6, M3, R12<BR> Reported to fit: Uniquefire L2<BR> Reported to fit: Ultrafire G60, G90, G120<BR> Reported to fit: SpiderFire L2 Series, G&P T-6, T-9, R12, , Hugsby S3, M2, G2<BR><BR> Package Includes: 1 x New CREE XM-L2 LED 1-Mode LED Drop-in Module