The Hollis LED1200 Canister Light is a critical tool for demanding exploration dives. It is dependable and reliable, and constructed with the highest-quality materials in Lake City, FL. Hollis LED1200 Canister Light features a heavy-duty light head machined from aircraft-grade aluminum with redundant sealing, and a Delrin battery canister with overcharge/discharge circuitry protection and redundant sealing. Hollis LED1200 Canister Light comes in standard or sidemount configuration, making it the ultimate primary light for cave, wreck or ocean dives. Mark our words: it is our most dependable primary light ever produce, and the last primary you will ever need.