RM19815329840627422 Features: Built-in rechargeable lithium-ion battery provides up to 48 hours of runtime Integrated intelligent lithium-ion battery charging circuit (micro USB charging socket) Single multi-stage switch offers access to all functions with one-handed control Feature an extra-wide, flawless 100 deg beam that illuminates peripheral vision Extremely lightweight, compact and portable Specification: Product name: LED fluorescent tube keychain Material: Durable Polycarbonate 2 Modes: High, Low Brightness: 45 Lumens (Max) Working Time: 1h (High),48h (Low) Beam Distance: 24m Impact Resistance: 1.5 meters Beam Intensity: 150cd Waterproof: IP65 (kindly note) Color: Black, White, Blue, Green, Pink Size: Approx.2.22" x 0.83" x 0.31" (56.5mm x 21mm x 8mm) Weight: Approx.9.6g++