Product Name: CROPS EZ400-mu Bicycle Lamp 5 RED LED I'm selling this because I don't ride at night very often. It has an automatic flashing/off function, and a light sensor that automatically turns off in bright places and automatically flashes/turns on when it gets dark, which was convenient when entering tunnels. Functions: Manual switching, automatic flashing/off function Automatically turns on/off depending on the ambient brightness via a light sensor Retail Price: 3,520 yen (tax included)