Features: FAST DRYINGThe wavelength of the lamp bead is 365+405nm, with a 5 times convex lens, it takes about 5 seconds to dry the color glue, and 10 seconds to dry the sealing layer. PORTABLE SIZEThe nail lamp adopts a small size design, light weight, easy to carry, long-lasting battery life, and easy to use at home or outside. TWO-SPEED TIMINGIt adopts a two-speed timing design, which is more convenient to light up, dry quickly, and stick diamonds and nails easily. RECHARGEABLE BATTERYThe design of the built-in large-capacity rechargeable battery can be charged using a USB socket, power bank, etc. TRANSPARENT PROTECTIVE COVERThe high-hardness transparent protective cover is used to protect the lens firmly and durable without affecting the intensity of the lamp. Specifications: Material: plastic Color: as shown Size: about 110.8 x 16.38mm/4.36 x 0.64inch(length x width) Powered by: built-in 180mAh rechargeable battery Wavelength: 365+405nm Power supply: DC5V/0.5A Input port: Type-C USB Power: 3W Package Included: 1 pc x nail lamp 1 pc x data cable Note: 1. Due to the light and screen difference, the items color may be slightly different from the pictures. 2. Please allow 0.5-2 cm differences due to manual measurement.