UltraFire Ultra-Slim USB 2.0 Powered 0.2W 3-LED 22lm White Lamp - Silver White + Black
Working voltage: DC 5V Product feature: - Energy-saving power consumption low to 1/10 of incandescent lamp with the same brightness - High brightness: Brighter 10 times than incandescent with the same power - Environmental: Does not contain lead mercury and other elements no environmental pollution - No radiation: No ultraviolet and infrared light no harm to human body - Faster response: Without hot start time can shine in microseconds - Strong stability: Anti-vibration impact resistance safe and reliable. - Longer life time: 30000~50000 hours