Model: SZYL-LGT-428 Specification: 5W / 5.5V 1. The module: 5W / 5.5V with a 6m cable. 2. Lithium battery: 3.7V / 4000mAh fixed in this product. 3. The LED light source: 3W, the service life is more than 50000 hours. 4. 4. USB output interface? 5V / 500mA for your phone, MP3, MP4. 5. Charging time: 4 hours for one unit; 7 hours for two units. 6. Operating time: 7 to 8 hours approximately if the battery is fully charged. 7. This product is also controlled by the infrared remote control. 8. The configuration of this product is adjusted and modified according to customer need. Refer to the Munuel.