MATERIAL:rubber,aluminiumBULB:XPE 3W LED,2W COBLUMEN:led 100lm,low-40lm,cob high-120lm,low-50lmCCT:LED-7000-9000Kwith a strong magnet on the bottomBATTERY:2*AA(not included)SIZE:16.2*5cmPACKING:double blister