Special Features:stroboscopic Material Type:ABS Item Diameter:11.3cm Item Type:Warning Lights Assembly Color:MULTI Item Weight:340g Model Name:PF-55HJD Origin:Mainland China Model:Solar Power Lighting Mode:8 LED Strobe Installation:Magnetic/Wireless Performance:Waterproof Application:Car/Truck/Bus/Machine/Others Working:Night Automatic Sensor Notice before purchasing: This product is a solar wireless model with a built-in battery and light sensing system. After turning on the switch, it will only work automatically at night and in dark places, and will not work under bright light. 1. Solar charging during the day, automatically start working at night or when the light is dark; 2. With light sensing system, it can be turned on and off automatically without any operation; 3. Equipped with 8pcs super bright LED lamp beads; 4. Solar products, built-in batteries, the base is equipped with strong magnets, no installation, no wiring; 5. Charging for 4-5 hours under sufficient sunlight can flash all night.