USB Powered E27 5W LED Bulb   Main Features‎:‎ ● Healthy source‎,‎ does not contain the ultraviolet ray‎,‎ no harmful material to human body ● Environmental pollution and contains no mercury and harmful to the environment ● Easy installation‎,‎ vibration resistance‎,‎ resistance to blunt ● Long life expectancy‎,‎ low power consumption‎,‎ strong anti‎-interference ability ● Light angle‎:‎ 180 degrees Very Important‎:‎ ● We have cold white light and warm white light‎,‎ please leave message if you need the cold white light or warm white light Notes‎:‎ ● Please shut off the power when installing ● Please avoid glare when installing   Average Life ‎(‎hrs‎)‎‎:‎ 50000 Hours LED Chip Brand‎:‎ Epistar LED Chip Model‎:‎ 5730 Number of LED Chip‎:‎ 1 pcs Support Dimmer‎:‎ No Wattage‎:‎ 5W   Package weight‎:‎ 0.142 kg Package Size‎(‎L x W x H‎)‎‎:‎ 14.00 x 6.50 x 6.50 cm / 5.51 x 2.56 x 2.56 inches Package Contents‎:‎ 1 x E27 5W LED Bulb     Product Notes： 1‎.‎ Please confirm the voltage first‎.‎ If the voltage of a product is 12V‎-24V‎,‎ then you must use a professional LED voltage converter‎.‎If the voltage in your country is 110V‎,‎then you should choose a product that voltage is 110v or 86‎-265v‎(‎86‎-265v is adapt for all country‎.‎‎)‎ 2‎.‎ Please check the specifications of the product carefully before ordering to insure a proper fit‎.‎ 3‎.‎ Do not disassemble any bulbs by yourself‎.‎ 4‎.‎ Be sure to cut the power off before beginning installation to avoid personal injury