It is bright enough for you to read, write or use in most occasions, you can adjust the light according to your needs, provide sufficient light in low , and won't disturb your roommates, when sharing a room with others, bring you more conveniences. Features - Color: White. - Material: Silicone, Alloy. - Size: 7.00X4.10X2.00cm/2.75X1.61X0.79inch. - Power: 2.9W. - Voltage: DC5V. - Current: 115mha. - Easy to use, you just need to plug this touch lamp into USB ports on your laptop, computer, portable power source, USB socket, etc. - Allow you to enjoy reading, do any computer task, camping, etc. - It is great as an USB computer or laptop light for keyboard without backlit. - They can be a gift to share with your family or roommates. - Lightweight and portable, you can take them by your sides, and use wherever you want, don't need charge and battery. Package list: 1 x USB night light