Stud 50 front light Perfect light in and around the city 200 lumens in constant and 100 lumens in flashing mode, more than enough to maneuver and be seen through traffic Smart light beam gives a wide field of vision without blinding oncoming traffic Easy to mount on the handlebar with the strap Light turns on with the last mode used Multi color battery indicator USB Rechargeable (cable included)Slide rear light Compact with multiple mounting options 16 lumens/5 hours runtime in high constant mode 4 lumens/16 hours runtime in low constant mode 16 lumens/48 hours runtime in day flash mode Runtime Safety mode extends the runtime with at least 3 hours in Flash mode Mounting strap fits tubes up to 45mm Sliding USB port cover 8 LED battery indicator gives the battery status every time the light is turned on or off Light turns on with the last mode used USB Rechargeable (cable included) Attributes Battery Type USB rechargeable Bracket Rubber strap Light Type LED Output 200 / 16 lumens Position Front and Rear Primary Color Black Lumen Range 151 - 200 Rechargeable Yes