Got a flickering LED lamp? No need to replace it—just grab a pen! In this video, we’ll show you how to use a common pen to fix your LED lamps in a few simple steps. This quick, low-cost trick ...

Who needs a 1920×1080 OLED display when you can have an 8×8 matrix of LED goodness? That’s the question [Kathy] asked when she built this LED matrix light pen project. It looks simp… ...