The Blade LED Bed Light is battery-powered and provides 340 measured lumens of 5500K white light without connecting to the vehicle electrical system. This option includes one lamp, a Toyota bed rail adapter, and four AA batteries. A five-minute automatic shutoff helps preserve battery life.The included adapter mounts the lamp to compatible Toyota factory bed accessory rails and allows positioning along the rail. A compatible rail is required. Compatibility with other accessory rail systems has not been confirmed.The lamp illuminates tools, tie-downs, and cargo inside the bed, including areas where a tonneau cover or bed rack limits overhead light. It operates independently of the ignition and factory cargo lights.Construction includes a polycarbonate lamp and EPDM rubber end cap, with an IP55K intrusion rating and an operating temperature range of -40 to 50 degrees C. Offered in partnership with Bee Lighting and manufactured in the United Kingdom. Backed by a three-year warranty.