Muography Applications Kim Siang Khaw CYGO COMBO ZOT 250 DICE TAIL LIGHT 50 USB. 250 lumen headlight with 8 modes, 50 lumen tail light with 8 modes, engineered for use on roads and commuting USB rechargeable internal headlight battery lasts up to 100 hours, and tail light lasts up to 65 hours Low profile, water resistant design headlight only weighs 60 grams and tail light only 30 grams Built in 24 7 Safety Technology gives you a powerful selection of night and day modes, headlight features 8 modes, tail light features 8 modes Both feature SteadyPulse mode to alert motorists with attention grabbing pulses while its overlapping steady beam constantly lights the way at night Both feature DayLightning to make you stand out in broad daylight with lightning like flashes Tail light Adaptive Flash Technology senses day and night, automatically switching to optimal flash mode Headlight side light ports further highlight your presence Low battery indicator alerts you when a charge is needed Light mode memory saves the mode you`re in before the light is turned off Versatite flexible mount conveniently attaches to standard and aero styles Designed, engineered, and assembled in the USA since our founding in 1991