The RFR Power Light Set USB with its Cree XPE 3W LED blasting out 120 lumens turns the night into day whilst the splashproof casing is a cinch to attach using the included strap. Featuring three light modes and an integrated 800 mAh lithium-polymer, that can be recharged conveniently via USB. Outstanding visibility from behind comes courtesy of the red LED light with five diodes and four light modes. Lights listed under "Outdoor" may not be affixed to bikes/vehicles to be used on public roads in Germany.