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 ...

Torches are essential for power cuts and camping trips in the great outdoors. And now there’s a powerful offering that beams white light so strong that it can fry an egg and start a small fire. The ...

Unlock to see our ratings and compare products side by side Actual 3K or 12.5K color temperature (kelvin) is the average measured color temperature of 10 bulb samples. Those with 2700 K are closest to ...