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, …
Tags, terms, additional information
Knowledge of the attributes of modern products is absolutely necessary for good advice. Unfortunately, new technology always brings with it a host of new or previously unheard terms. Confusion is often pre-programmed. To remedy this, we have prepared a small guide containing the most important terms for understanding and using our products. With this, you should be able to advise your customers even better.
LED
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. …
Left-hand traffic
In left-hand traffic (LHT), vehicles drive on the left side of the road.
Lens
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 …
LHD
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).
License plate illumination
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.
Light
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 …
Lighting diagram
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
Lighting group is the term used for the unit comprising the lamp, parabolic reflector and the protective/diffusion disc of a light.
Losses
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. …
Low beam
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. …
Lumen
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
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 …