Streamlight’s Strion DS (Dual Switch) Rechargeable Flashlight offers a tailcap and head-mounted switch. Dual switches operate independently from one another, allowing access to all four lighting modes via the tailcap or the head-mounted switch. Anodized, machined aircraft aluminum construction for rugged dependability. C4 LED technology delivers extreme brightness with a 50,000 hr lifetime. Optimized electronics provide regulated intensity. Projects up to 375 lumens of blinding light for up to 2 hours. TEN-TAP® programmable to select one of three different programs.