LED Pen Lights Streamlight’s FiberWrap fiberglass polymer pen lights come in four high-intensity LED colors. The red, green, white and blue PolyStylus pen lights feature a 5-mm LED designed for ...

Veluya made a batch of LED light-up pens using instructions he found online, gathered up his friends and family members, and created a proposal video — which you can see below — over the ...

The Writing Light runs about 40 hours on two 3V lithium batteries. It comes in blue and pink. The pen is 5.8 inches by 1.6 inches by 1.6 inches and retails for $9.95.