The best hoverboards for kids are stable, safe and lots of fun. These are our top picks of 2025 from brands like Hover-1, ...

The first LEDs only emitted red light; it wasn't until 1972 that George Craford developed the yellow LED, with a green LED following in the same decade. The blue LED can also trace its history ...

including suggestions such as using transparent broken glass in the LED channel for better light transmittance and a lighter tone of blue epoxy for improved aesthetics. Additionally, when the LED ...

The Lumalux Face Pro LED Light Therapy Mask provides ... you get 200 red LEDs, 200 blue LEDs and 200 green LEDs to make different kinds of colour light therapy, plus 180 Infrared LEDs and 20 ...

The new LED lights will allow BYU to include the lights in the gameday atmosphere, something that's never been possible before. The new lights can flash on and off and they can turn blue.

This Jetson Mojo Light-Up Hoverboard ($100, originally $160) is a great present for any kid on your list. It has full-color spectrum LED lights ... Plus II Portable Bluetooth Speaker ($230 ...