The amusing circuit of electronic candle was designed to react by blowing or giving a puff to a microphone, causing the bulb or LED to turn OFF like a normal candle. BC550 – an NPN general purpose ...

Humans like things that look like other things. A great example are faux LED tea light candles, with a plastic “flame” and flickering orange LED to recreate the effect of their waxy brethren.

An earlier Idea for Design described LED “candles” that you could blow out just like normal birthday candles (“Electronic Birthday Candles ‘Blow Out’ One At A Time”). A thermistor and heating resistor ...

This circuit creates a set of LED-based electronic birthday candles that are just as much fun as blowing out wax candles, but are also reusable, scalable, and even eco-friendly. It uses a thermal ...

[William] developed this temperature candle as a tool to help keep babies safe as they sleep. It seems that ambient temperature has an effect on Sudden Infant Death Syndrome (SIDS). This device is ...

This design was developed by request of a correspondent having made a sort of LED candle and needing to switch off the LED with a puff. This simple, easy to build gadget can be useful as a prop for ...

Every family has at least one candle obsessive. You know the one: They always light a candle after doing a deep clean of the entire house, and it's the signal that you're no longer allowed to touch ...