A red LED torch is essential for preserving your dark adapted vision at night allowing you to read star charts as well as setup and take down your accessories safely. The red wavelength is specific to ...

ARE THE ACTIONS TAKEN... on New Year's Eve just a little luckier? If you eat a delicious meal on the last day of the year, is that a flavorful foretelling of the year to come? If you see a shooting ...

This Design Idea describes a single white-LED torch, which can be housed in an empty glue-stick tube and has a long rechargeable-battery life. The circuit is constructed with just a few commonly ...