The product is illuminated with 3Wcob lamp, which is energy-saving and bright, and has 800 mah built-in 18650 rechargeable lithium battery. With a USB cable for charging, it can be used for lighting for about 5 hours after charging for 3 hours. It can also be used for lighting with 3 ordinary no.7 batteries, and the head can be adjusted for 90 degrees of light. The tail also has magnets that can be used to light any iron object.