Model:JSL Spec:¦µ34¡Á103mm Standard:SOLAS74/96,MSC.81(70) Flashing frequency:50~70times/min Rated paramenter of Battery:3V 1.3Ah(CR17335) Rated paramenter of Bulb:2.5v,0.4A Period of Validity:five years Luminous Intensity:¡Ý0.75cd Time of power Supply:¡Ý8h China classification society "CCS" certificate