... distance: more than 500m Solar safety light is on big truck ,guardrail ,wall ,tower,bridge and son on 1. Solar Panel: 3.5V/78mA ... solar panel. 2. Battery: Ni-MH, 2.4V/600mAH, High temperature-resistant.3. Output power: Maximum 3V/50mA, Minimum 1.8V/30mA4. Light ... day.It takes about 4 hours to charge by AC power to charge it full . 8. Switch control : on/off and ...