About this item

• SOLAR POWER -It's powered by solar It can be charged by solar whether you put switch to "on" or "off". It can blink for whole night after enough sun shining in daytime
• SUPPORTS USB CHARGING - If there is not enough sunlight, you can use the power bank to charge, and it can work for a week after being fully charged
• EASY TO INSTALL -- No wire needed, just stick it to the roof of the vehicle with corresponding glue
• LIGHT SENSOR -- This LED light will flash in nighttime and will not flash in daytime
• SAME BLINK FREQUENCY-This product flashes every 5 seconds, consistent with most of the original warning lights on the market