| This design for a Christmas tree lighting system employs ten red light emitting diodes (LEDs) instead of the usual lamps. The LEDs are power...
| This design for a Christmas tree lighting system employs ten red light emitting diodes (LEDs) instead of the usual lamps. The LEDs are power...
| Remote controlled light switches are becoming more and more common. DIY stores have inexpensive sets consisting of several light switches an...
| Solar powered lights are nowadays available at incredibly cheap prices, so we won't advise you to build these yourselves. But you may b...
| Nowadays, a switch-off delay for the vehicle interior lighting is a naturally a standard feature. However, with certain models having only s...
| Interesting, surprising as well as scientifically useful visual effects can be obtained by employing coloured LEDs instead of the normal lam...
| A handful of high-intensity LEDs is sure to provide new accents in room lighting. In traffic lights and other signalling equipment, they sav...
| Ordinary proximity detectors use infrared sensors which respond to the warmth of the human body. But there’s a simpler way: we can use ambie...
| One thing that’s still always very irritating with model train setups is that the locomotive or carriage lights often flicker with the train...
| The circuit described here uses a PIC microcontroller to take over the complete control of the lighting and gearbox in a model lorry. It can...
| Completely ‘self-supporting’ garden lamps using solar cells as their energy source are gradually becoming more and more common. How do they...