Fenix will only allow the best and most innovative products to make it to market. Products that do not meet their strict standards are never released. Fenix has always dedicated itself to enhancing their product's quality, workmanship and performance. The Fenix brand are one of the most exciting ranges of LED Torches to hit the market in recent years. These high quality flashlights have everything you could ask for; powerful, small, light and water proof with incredibly long battery life. Made from aircraft grade aluminium with an extra tough anodised finish, Fenix Lights are at the cutting edge of LED torch technology. Fenix TK15 R5 New features for this light include a side switch for easy mode selection, without the need to adjust grip on the torch. Dual recoil absorbing springs ensure constant operation, and make this light ideal for weapon mounting. The light can be powered by two CR123A or one 18650 rechargeable Li-ion cell. The TK 15 has a maximum output of 337 lumens with 4 output levels allowing the best selection of brightness and runtime plus high frequency strobe setting. Low Setting: 15 Lumens (142 hour runtime) Mid Setting: 47 Lumens (23 hour runtime) High Setting: 143 Lumens (6 hour runtime) Turbo Mode: 337 Lumens (1 hour 50 minute runtime) Strobe Mode: 337 Lumens TK15 R5 Specifications Cree XP-G LED (R5) with a life span of 50,000 hours Uses two 3V CR123A Lithium batteries or one 18650 Li-ion battery 135mm (Length) x 25.4mm (Diameter) x 34mm (Head) 152-gram weight (excluding batteries) Digitally regulated output - maintains constant brightness Reverse polarity protection, to protect from improper battery installation Tactical tail cap switch with momentary-on function Anti-roll, slip-resistant body design Made of durable aircraft-grade aluminum Premium Type III hard-anodized anti-abrasive finish Toughened ultra-clear glass lens with anti-reflective coating Notice: The above-mentioned parameters (tested in lab by using quality CR123A primary Lithium batteries) are approximate and may vary between flashlights, batteries, and environments.