Popular LED bicycle light "Jupiter PRO ET-306 3LED Beam". When inserting or removing the batteries, you need to remove one screw with a precision screwdriver. It has been used very little and is in a clean condition, but the spring that holds the batteries inside has some slight rust. Operation has been confirmed, and there are no problems. The other item is a USB Type-C rechargeable bicycle light, used only once and in excellent condition. It is recommended for use as front and rear lights. Both lights can be attached and detached with one touch. Manufacturer: WINTEC Model: ET-306 (Carbon/Black design) Brightness: 280cd (27Lux) for powerful illumination, ensuring safe night riding! Power: Uses 3 AAA alkaline batteries Operating time: Approximately 20 hours of continuous lighting / Approximately 200 hours of flashing Weight: Approximately 50g (lightweight and doesn't burden the handlebars) Mounting diameter: Compatible with 21-24mm Material: ABS resin / Rainproof specification