Light Fixture Distribution Types

Different types of light fixtures.

Light fixture distribution types.

Outdoor light fixtures use light distribution patterns. Type iv light distribution. These types of fixtures are used a lot in offices where general lighting is required but there is also a need for task lighting immediately below the fixture. The type iii distribution is meant for roadway lighting general parking areas and other areas where a larger area of lighting is required.

Some distribution types are better suited for certain areas than others. Whether in an indoor warehouse or an outdoor parking lot there s a preferred light distribution for you. Type iii lighting needs to be placed to the side of the area allowing the light to project outward and fill the area. This produces a filling light flow.

The type iii distribution is meant for roadway lighting general parking areas and other areas where a larger area of lighting is required. You will see these distributions used regularly in parking lot lights area lighting floodlighting roadway lighting. When it comes to choosing a light fixture your choices can seem overwhelmingly endless. The patterns define how light is dispersed from a fixture and is defined by the point at which 50 of the fixture s luminous intensity is met.

The light distribution type of a fixture represents the pattern of light emitted by the fixture. Like type iii fixtures these light fixtures will cast light 2 75 times wider than their height but produce a more rounded distribution pattern that pushes the light outward with little light falling behind the fixture. This produces a filling light flow. Type iii light distributions have a preferred.

Type iii lighting needs to be placed to the side of the area allowing the light to project outward and fill the area. Type iv light distribution fixtures are known as forward throw or asymmetric fixtures.