The AUTHOR SQUARE COB USB features superior visibility with hi-end COB LED technology, providing a new level of safety. Build in nylon plastic case with strong alloy frame. COB LED technology 40 lm. Rechargeable Li-ion battery ( min. 500 charging cycles ). USB 2.0 A/Micro B charger cable included. STEADY MODES: 12 lm - 5 h, 15 lm - 4 h, 30 lm - 2 h. FLASHING MODES: 20 lm slow flashing - 10 h, 40 lm quick flashing - 5 h, 40 lm slow flashing - 5 h, 40 lm day flashing - 8 h. Adjustable tool free bracket with silicon strap for diameter 15 –35mm even the unround profiles. Clothing clip is attached in packing. Battery capacity indicator ( Red light = capacity is 1-20 % ). Charging indicator ( Steady red light = charging , steady green light = full charged ). Charging time 1 h aprox. ↓↓↓# light batteryproduct testphotogallerydownloadvideogalleryproduct options Photogallery Download [ TEST ] test Cykloservis 2019-04 [ jpg, 393 kB ] Videogallery Product options black / red-glass24"-28" = UA#12039970