Features: The bulb is made of high temperature resistant PC case,which is durable. Sudden blackout? Camping outside, No electricity? Don't worry, this 5W Portable USB Emergency Lamp will help you out. With a power bank or any USB port. Convenient with a metal wire hook for portable to hang on or take down. Design with a switch to free On/Off, no need to plug and unplug the USB port frequently. Warm or cold white light, bright, soft, not dazzling. Low consumption, high brightness, stable performance made of high quality materials. Super energy saving, environmental protection. Super bright LED USB light bulb for your camping, beach tent, travel, night market, dormitory, Emergency use. Package Includes: 1PC x LED Bulb Specifications: Material: Plastic Output Power: 5W Voltage (V): DC 5V Cable length: 2.5m/98.42in Light Color: Warm White Cold White note: No retail package. Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you