| This Ring Light is an illumination source used with webcams, microscopes and photo cameras. It is mounted around the lens to provide an even...
All items tagged with LED and light (92)
| While in the past we usually had to make do with a string of tiny, fragile light bulbs, which would flash at the most, now we can choose fro...
| Converting a traditonal bulb light on a bicycle to one that pumps 350 mA through a Cree XP-E LEE to produce 114 lumen.
| Fitting a bike with a rear light that stays on even when stationary is both useful and interesting — especially when it uses a circuit as si...
| Disappointed that he could not find a simple cheap DMX remote controller for a multi-coloured LED spotlight the author set about designing h...
| With the help of just a handful of components you can create a blue flashing light for use in model ambulances or police cars. Two blue LEDs...
| In a project named D-light a technology is developed to wirelessly transmit data using visible light instead of radio frequencies. Professor...
| Cyclists’ pulsing LED lights are eye catching and much more conspicuous than a steady light, so it was decided to make provision for the oth...
| The circuit shown here is formed of nine inverting transistor amplifier stages connected in series with an LED connected between emitter and...
| Who invented the light emitting diode or LED? Nobody! Let’s re-phrase the question then; who was the first to discover light emission from s...