Tennis Lighting 2019-12-05T09:35:44+00:00

About tennis court lighting

When planning a lighting installation, the following general design issues should be considered:

 The intended standard of play – this will govern the dimensions of the courts, the level of illumination, uniformity, etc.

 Relevant government requirements and permissions in force locally.

 Installation and running costs, including maintenance, heating or cooling and light source replacement.

 Access to and the cost of a suitable power supply.

 General everyday maintenance including cleaning and repair lighting units.

 The effects on others of spill light.

Good light for player and audience eyes

When you install the asymmetric led flood light, all the light will go to the playground directly, no any light will be wasted. And the light is friendly to the player and the audience.

Dizzy light for player and audience eyes

When you install the symmetric led flood light ( the common led flood light with 120 degree beam angle), parts of the light will be wasted, because the light will be emitted to different direction.

Lighting standards ( Outdoor)

Some National Associations and governments have set different requirements for indoor or outdoor lighting and may use different units of measurement. However, as a guide, the following shows the minimum standards according to the European Standard for Sports Lighting, EN 12193:2008 where:

– Class I: Top-level national and international competitions (non-televised) with requirements for spectators with potentially long viewing distances.

– Class II: Mid-level competition, such as regional or local club tournaments. This generally involves medium-sized numbers of spectators with average viewing distances. High-level training may also be included in this class.

– Class III: Low-level competition, such as local or small club tournaments. This does not usually involve spectators. General training, school sports and recreational activities also fall into this class.

Horizontal illuminance (Eh average (lux)) Uniformity of illuminance (Emin/Eh ave) Glare (GR) Lamp colour temperature (K) Lamp colour rendering  ( RA)
Class I > 500 lux > 0.7 < 50 > 4000K > 80
Class II > 300 lux > 0.7 < 50 > 4000K > 65
Class II > 200 lux > 0.7 < 55 > 2000K > 20

Lighting standards ( Indoor)

Horizontal illuminance (Eh average (lux)) Uniformity of illuminance (Emin/Eh ave) Glare (GR) Lamp colour temperature (K) Lamp colour rendering ( RA)
Class I > 750 lux > 0.7 < 50 > 4000K > 80
Class II > 500 lux > 0.7 < 50 > 4000K > 65
Class II > 300 lux > 0.7 < 55 > 2000K > 20

Key terms

Horizontal illuminance

This is the amount of light falling on the court surface; it is often referred as lighting level. It is expressed in lux (or foot-candles in the USA).

Eh average is the average value of the horizontal illuminance calculated/measured on the reference grid.

Uniformity of illuminance

This is a parameter describing how evenly light is distributed over the court surface.

Emin/Eh ave. is the minimum value of the horizontal illuminance calculated/measured on the reference grid divided by the average value.


This is the disturbing effect which impairs the vision; it depends mainly on the ratio between the direct brightness of a lighting installation and the brightness of the court surface.

GR is the Glare Rating factor assessing the quality of the installation from a glare perspective

Color temperature

This is the apparent colour of a light source; it is expressed in Kelvin (K).

Colour rendering

Colour rendering describes the ability of a light source to reveal and reproduce colours accurately.

It is ranked by the colour rendering index Ra (from 0 to 100) where the higher the index the better the colour accuracy

Obtrusive light

Spill light, which because of quantitative, directional or spectral attributes in a given context gives rise to annoyance, discomfort, distraction or reduction in the ability to see essential information.

In the case of outdoor sports lighting installation obtrusive light is considered around the installation and not for spectators, referees or players within the sports area.

Reference area

The Total Playing Area (TPA), for which the following lighting requirements are defined, includes the Principal Playing Area (PPA) and extends to a perimeter of 1 m inside the perimeter of the court.

Reference grid for calculation and measurements

Calculations and measurements of the performance of a lighting installation should be done on a specific grid, where grid points are determined by the length and width of the TPA.

For horizontal illuminance the reference level of the grid is the ground.

For calculation, it is recommended to define a grid of 15 points along the length direction and seven points along the width direction of the TPA, with a grid spacing of 2.5 × 2.5 m. Measurements can be done by using only one point out of two, on 5.0 × 5.0 m spacing (see figure 1 in Appendix).

Maintained values

The lighting level provided by an installation will decrease throughout its life, mainly as a result of depreciation of lamps and luminaires (see also section 7 below).

Average illuminances given in table.5.2 and table 5.3 are maintained values under which the lighting level should never fall below, during the whole operation of an installation.

Usually a maintenance factor is specified to compensate for ageing and soiling of the light sources, reflectors and front glasses. In the absence of relevant information, it is recommended to use a maintenance factor of 0.8.

Spectator area lighting

For the visual comfort of spectators rather than safety or emergency reasons, the lighting level should be at least 10 lux.