Looking for our best selling Lumina(TM) series in a smaller and lighter package? Look no further than our Micro 900. NiteRider(R) makes this headlight USB rechargeable for convenient on-the-go charging. Another feature of note on the 900, Intellicharge(TM), which reduces your charge time in half-giving you more time riding and less time waiting. Its light weight at 130 grams makes it quite suitable as a helmet mountable option as well as bar compatible-standard and oversized 35mm diameters. DESIGN: Daylight Visible 900 lumen output head light All New Collimator Lens, produces a generous even widespread beam Ride safely with Daylight Flash Mode! 4 Light Levels plus 1 Daylight Flash Mode FL1 Standard IP64, dust and water-resistant Secure on and off-road capable Handlebar Mount Fits standard and oversize 35mm handlebars Compact and lightweight design that's perfect for helmet mounting (Helmet Mount Sold Separately) Convenient USB rechargeable Low battery indicator Lock Mode, perfect for use during storage and transporting the light. Press and hold power button for 8-10 seconds to lock out operation of light. Weight: 130g MODES: Low - 11:00h at 200 Lumens Med - 4:30h at 450 Lumens High - 2:00h at 900 Lumens Flash - 11:00h at 900 Lumens Walk - 60:00h at 30 Lumens