LIGHT HEAD The light head is made of the same 6061 T6-grade aluminum used on commercial aircrafts for strength and durability, and provides fast heat dissipation of the LED components. Redundant seals in the light head and battery ensure no flooding will ever occur―a necessity for your tech-minded customers―and two canister lid. OSRAM Emitter – Light power LED with high performance, superior robustness and long lifetime 6 Degree MR11 reflector, optimized for creating a tight beam for signaling and underwater use. Machined aircraft grade aluminum housing and handle Choice of two handles, elastic goodman (sold as standard option), and hard goodman grip (sold as accessory only). Heat protection circuit built into the LED BATTERY CANISTER Two canister lid options for standard or sidemount configuration Powered by a 5.2aH (57.5wH) Li-Ion battery pack Negative in water - .69 lbs Machined solid Delrin canister with external locking Nielsen latches Charging ports inside battery lid keeps battery sealed from environment during charging Charging ports keep terminals sealed from water during dives Protective toggle switch with durable rubber boot and redundant sealing Overcharge and discharge circuitry protection built into battery and charger Includes mounting hardware and charger Certified for safe transportation UN/DOT 38.8 / CE approved