Replace UltraFire 501B， 502B， 504B and C1 flashlights 　 　
Equipped CREE XM-L T6 emitter with reflector 　 　
40pct more efficient than the xenon bulb 　
5 modes， hi > mid > low > strobe > sos 　
Longer life time (50000h manufacturer rated)
Aluminum SMO reflector