Topeak headlux helmet lightgreat safety light which mounts to any helmet with two front white leds and 2 rear red leds for all round visibility features 3 modes white constant red blinking white blinking red blinking white constant red constant wide angle 220 reflective lens 65x3 5x3cm k 18g bulb 2x white le ds and 2x red le ds battery lithium cr2032 x2pcs luminious intensity 1 lux5m06 lux10m burn time 70hrs100hrsbuy topeak accessories from chain reaction cycles th