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TÜV is an independent German testing organisation. A TÜV mark means that an external party has tested the product for safety and quality.

An LED spotlight is a lamp or luminaire with a directed beam of light. Well-known types are GU10 (230V), MR16 GU5.3 (12V) and AR111.

A downlighter is a ceiling light that directs light straight down. LED downlights come in recessed and surface-mounted versions and give wide, even light.

A floodlight is a powerful lamp with a wide beam for lighting large areas, such as yards, façades and construction sites.

An LED high bay is a powerful luminaire for high ceilings in warehouses, factory halls and sports halls. Because of its round shape, it is also called a UFO.

The IP rating shows how well a lamp is protected against dust (first digit) and water (second digit). The higher the numbers, the better the protection.

Lux is the amount of light falling on a surface. For office work, 500 lux is the guide value; corridors and storage areas need less.

Watts are a lamp's power consumption, not the amount of light. With LED, look at lumens; the number of lumens per watt tells you how efficient the lamp is.

RoHS is a European directive that restricts the use of hazardous substances, such as lead, mercury and cadmium, in electrical and electronic products.

With the CE marking, the manufacturer declares that LED lighting meets the European requirements for safety, electromagnetic compatibility and the environment.