The led kitchen lights for under units uses a non-contact sensor switch. When you work in the kitchen, you only have to move your hand 3-5 cm away from the sensor to light up the lamp. 
Dimensions -  420mm*35mm*6.2mm.
No USB required, no battery, we provide a power head (The power head of this item is British standard), you can use it when you connect it to the power supply.
The kitchen under cupboard lighting beads are installed on both sides of the lamp body and have a side-emitting design, so the light is very soft and does not irritate your eyes.
You have two installation methods to choose from: you can use 3M glue to stick the kitchen cabinet lights directly; or you can drill holes on a flat surface and attach the led under cabinet lighting with screws.
Natural White - 4000k
Luminous Flux  - ‎390 Lumen, ‎12 watts, colour temperature -  ‎4000 Kelvin