The Nebo Einstein 50 Lumens Cap Light is a rechargeable light made for the visor of your cap. It features a sensor mode that allows for contactless control of power and includes a battery that powers it up for up to 18 hours.Simply clip it to your cap visor and enjoy hands-free illumination. 

It comes with top-positioned buttons for power, mode selection, and wave activation, as well as a micro-USB charging cable to recharge the battery for more visibility in the dark. Whether you're running or just need extra light, the Einstein cap light has you covered.