1. Simple design, easy installation. 2. Major reduction heat generation, long life. 3. Low power consumption, saving energy and environment protection. 4. High ability of shock resistant, brighter light, low temperature. 5. Parameter: Voltage: 4.5V Power: 0.3W Lamp beads: 4LED Brightness: greater than 30 Power supply: 3 AAA batteries (not shipped with) Dimensions: 90 x 21 x 64mm Light-emitting angle: more than 100 degrees
