COOLEAD 5V 5W USB LED Camping Light Portable Tent Lantern Lamp Night light Emergency Bulb For Backpacking Hiking Fishing Outdoor Indoor ( Black ) Powered by any USB source, Low temperature & low power consumption easy to hang it up,270 degree beam angle provides wide ambient lighting. Super energy saving, lightweight and portable 300-400 lumens, equivalent to a 40W incandescent bulb Powered by any USB source, such as power bank, computer, laptop, or with the cellphone charger adapter