Tags, terms, additional information

The lamp is the light-producing component of a – for example – work light or headlight, a tail light or a rotating beacon. The lamps of traditional lights are generally divided into incandescent lamps, Halogen lamps and Xenon lamps and are generally replaceable. However, …

The abbreviation LED stands for Light Emitting Diode. This is a semiconductor that emits light as soon as current flows in the forward direction. Depending on the material used, an LED shines in different colours. …

In left-hand traffic (LHT), vehicles drive on the left side of the road.

A lens is an optical component made of a translucent material, often glass or polycarbonate. They are used to focus the light rays of e.g. a headlight or a work light and produce the beam pattern characteristic of the respective light. Often, a specific diffusion disc is …

In vehicles designated as LHD (or left-hand drive), the driver sits on the left side. These vehicles usually drive in right-hand traffic (RHT).

See left-hand traffic (LHT).

The licence plate illumination usually consists of a small light above or two lights to the left and right of the licence plate. For road approval, rear licence plate lighting is always required to ensure that the licence plate can be read even in the dark.

A light is a luminaire that emits a specifically shaped beam pattern by optical components such as reflectors, lenses and diffusors.

A distinction is made between headlights, which …

A lighting diagram shows the development of a beam pattern of work lights and headlights. It is usually shown as a top view (birdseye) and is supplemented by further information on brightness, usually in lux.

Lighting group is the term used for the unit comprising the lamp, parabolic reflector and the protective/diffusion disc of a light.

No lamp can use the entire absorbed energy for radiating light. LED lamps are, of course, much more efficient than the traditional halogen– or xenon lamps, but even with them, there are various losses that must be taken into consideration. …

The low beam is part of the headlight.

A road-approved headlight must be able to emit its light in such a way that oncoming traffic is not dazzled. For this purpose, the light is shaped as a so-called low beam. The beam pattern and the brightness of a low beam are prescribed by ECE regulations. …

According to its definition, a lumen (unit symbol lm) is the physical unit of measure of the light stream that is emitted by a light source. The higher the lumen value of a light, the higher is also its brightness. …

Lux (unit symbol lx) is the unit in which the illuminance is measured. This unit sets up a direct correlation of the brightness of a light source (in Lumen or Candela) to the actual brightness that this light source can reach on a surface. Here, 1 Lux describes the brightness of a …