| The popularity of halogen light is still increasing, and rightly so because of some distinct advantages: the colour temperature is agreeab...
All items tagged with light and Switch (42)
| When a battery is charged by a solar panel during the day, it may discharge via that panel after sunset. This may, of course, be prevente...
| This is one of the simplest twilight switches ever published in this magazine. When it gets dark, the value of light-sensitive resistor R...
| Many motorcycles have the facility that as soon as the igrutton is switched on, their dipped headlights (or day running lights) corne on....
| Many cars are not fitted with fog lights and, what is more, there is often no provision for them. However, since in most European and Nor...
| High-order filters are normally designed by using two or more 2nd order sections in series. This means that a 4th-order filter needs at l...
| Halogen lamps are rightly popular because they give a good light and have an excellent efficiency. Unfortunately, they tend to be costly....
| Most cars are provided nowadays with interior lighning that comes on automatically when one of the doors (or the tailgate of a hatchback)...
| The switch circuit, intended for low-voltage halogen lights, extends the life of the lamps, because it ensures that the filament current...
| This electronic switch is designed to be connected direct to the mains, which obviates a low-voltage supply and so keeps the cost and sp...