The INFINI I-111 bicycle light also functions as a flashlight. It can be easily removed from its bracket without any tools. The square and thin design like a credit card is handy to carry. Ideal for outdoor activities, the robust design provides protection against water, dust and knocks. The PMMA material and anodized hair-line surface treatment regulates the heat lost and provides a hardened surface construction as well as improving the focus and brightness of the light. A single 1Watt high power LED is used to produce the lighting brightness of 8-10 lux. With light and motion sensor, it can automatically turn on and off while riding in dark.