Solar Road Stud with Wire to control on-off: 1. Solar Panel: 3.5V/78mA, high efficient monocrystalline silicon solar panel. 2. Battery: Ni-MH, 2.4V/600mAH, High temperature-resistant. 3. Output power: Maximum 3V/50mA, Minimum: 1.8V/30mA. 4. Light Source: using 4 red φ5 red standard LED mixture with reflector in the middle. 5.