Model:PH2701B Spec:¦µ40¡Á120mm Standard:SOLAS74/96,MSC.81(70) Flashing frequency:50~70times/min Rated paramenter of Battery:1.5V¡Á4(LR6) Rated paramenter of Bulb:3.6v,0.3A Luminous Intensity:¡Ý0.75cd Time of power Supply:¡Ý8h China classification society "CCS" certificate