LEDHOLYT 0.3w Solar Powered Emergency Strobe Warning Light Wireless Flashing Barricade Safety Road Construction Traffic Flicker Beacon Lamp Yellow Color Solar power,no wiring,just pull the switch to "ON",it will automatically charge during the day,and illuminate automatically at night,environmental and convenient. Super bright LED,flash 110 times per minutes,500m light visual distance in dark. No wiring to connect power,easy installation.Just fix the bracket on the place where you need,keep the solar panel face to sunlight. Can last 20 days without sunlight under full charged (12 hrs/day). Multi-function warning lights: suit for traffic construction, crane tower, vehicle, house ect.