The Kryptonite Incite X3 /XR headlight and taillight set combines each light’s features into one convenient package. The X3 uses double lens technology to provide higher quality, precise light distribution up to 30 lux. 5 Modes of lighting provide 4-24 hours of battery life before needing recharging via USB. Side lights increase safety providing more visibility, and LED indicators display remaining battery life. The XR taillight provides high visibility in a compact, easy to mount package. 5 Modes for 18-36 hours of runtime before needing a recharge via USB.