LED Source:7pcs SMD Battery type:3.7V 1200mAh Li-ion Battery (18650) Dimension:140mm(L) x 87mm(W) x 106mm(H) Max output:20lm Funciton:Warm white half-bright - warm white full-bright - red - blue - green - pink - purple - yellow - seven-color gradient - off 30-minute timer shutdown Material:Silicone + Plastic