The Mankerlight E05 II Cu is the most powerful everyday carry copper flashlight in the single 14500/AA class. Precision-turned from solid copper with a polished finish that stays brilliantly shiny, the E05 II Cu combines 1,300 lumens of output with the timeless beauty and thermal conductivity of copper — a collector’s piece that performs as good as it looks.Key Features 1,300 Lumens — Maximum output in the 14500/AA class Solid Copper Body — Precision-turned and polished for a premium look and feel Multi-Fuel Compatible — Works with 14500 li-ion, Ni-MH AA, and Alkaline AA batteries Dual Constant Current Drivers — Consistent output across battery types Forward Clicky Switch — One-handed operation with momentary and full-press modes IP68 Waterproof — Tested 2 meters underwater 1.5-Meter Drop Resistance 1 Tritium Slot — At tail switch (fits 6×1.5 mm tritium) Multi-Color Filter Options — White / Red Copper-Plated Deep Carry Clip — 304 stainless steel with copper plating Specifications Body Material: Solid copper, polished finish Max Output: 1,300 lumens (14500 battery) Max Beam Distance: 148 meters Beam Intensity: 5,476 cd Waterproof: IP68, 2 meters underwater for 60 minutes Impact Resistance: 1.5 meters Runtime — 14500 USB-C Li-ion Battery (6500K) Low: 8 lumens — 50 hours Medium: 300 lumens ~ 8 lumens — 1 hour 30 minutes + 3 hours 50 minutes High: 1,300 lumens ~ 300 lumens ~ 8 lumens — 2 minutes + 1 hour + 4 hours Strobe: 1,300 lumens at 20 Hz Runtime — AA Ni-MH Battery Low: 1.5 lumens — 27 hours Medium: 100 lumens ~ 1.5 lumens — 1 hour 50 minutes + 3 hours 3 minutes High: 420 lumens ~ 100 lumens ~ 1.5 lumens — 2 minutes + 2 hours + 30 minutes Runtime — AA Alkaline Battery Low: 1.5 lumens — 55 hours Medium: 100 lumens ~ 1.5 lumens — 1 hour 20 minutes + 16 hours 50 minutes High: 420 lumens ~ 100 lumens ~ 1.5 lumens — 1 minute + 48 minutes + 3 hours 15 minutes Battery ChargingThe E05 II Cu is compatible with the Mankerlight 920 mAh 14500 li-ion battery (with built-in USB-C port). Supports fast charging (QC/PD) and USB-C to USB-C charging. Charging indicator: red = charging, green = fully charged. Full charge time: approximately 2 hours.Warnings Do not shine the light directly into anyone’s eyes. Remove the battery insulation sheet and fully charge before first use. Check and lubricate threads regularly with professional lubricant. Recharge the battery every 2–3 months if left unused for a prolonged period.