Bulb: CREE XM-L2 U2 (Max 860 lumens)
Reflector: glossy aluminum reflector
Lens: 4 mm toughened glass
Surface treatment: premium anodizing
Battery: 18650 Li-ion battery*1
With battery over-discharging protection, polarity reversing protection
Dimensions: 145 mm (length) * 34 mm (dia. of lamp head) * 28 mm (dia. of lamp body)
Net weight: approx. 148 g. (without battery)
Underwater weight: approx. 100 g. (with battery)