Sports Lighting Design Guide
Uniformity, vertical illuminance and broadcast.
1. Why it matters
Sports lighting is the most demanding outdoor application: it must light a large field to a high, uniform level, kill glare for players and spectators, and — where broadcast is involved — deliver the illuminance, uniformity, colour and flicker performance a camera needs. Getting it right is an aiming and control problem as much as a fixture problem, and the class of play (recreational to televised) sets everything.
2. Illuminance by class of play
| Class | Typical horizontal lux | Needs |
|---|---|---|
| Recreational / training | 200-300 lx | Even, low glare |
| Club / amateur competition | 300-500 lx | Good uniformity |
| Professional (no broadcast) | 500-750 lx | Spectator comfort |
| TV broadcast / HD | 1000-2000+ lx vertical | Vertical E, camera specs |
3. Vertical illuminance, uniformity and glare
A field is not lit by floor lux alone. Players and cameras see vertical surfaces — faces, the ball in the air — so vertical illuminance (Ev) and its uniformity matter as much as horizontal, especially for broadcast. Aiming is everything: floodlights on masts must be positioned and angled to build uniform overlapping cover while keeping bright sources out of players' and spectators' primary sightlines.
- Specify horizontal (Eh) and vertical (Ev) lux, each with a uniformity target.
- Uniformity U1/U2 tightens with class — broadcast is strictest.
- Control glare rating (GR); shield and aim to protect sightlines.
- Plan pole positions/heights for overlap and spill control.
4. Colour, flicker and broadcast readiness
For any televised or slow-motion venue, the camera sets the specification. It needs high colour fidelity (CRI ≥ 80, often ≥ 90 for HD/UHD, with good TLCI for TV) and, critically, flicker-free output at high frame rates — a driver that looks steady to the eye can strobe visibly in super-slow-motion replay, so specify LED drivers rated for the venue's highest capture rate. Add instant restrike (LED's advantage over metal halide) and a control system for pre-set scenes — training, match, broadcast, spectator egress — plus dimming to run lower levels when the top class is not in play, which is where the operating-cost saving lives.
5. Checklist
- Set the class of play first; it drives every other number
- Specify both horizontal and vertical lux with uniformity
- Control glare (GR) via aiming, shielding and pole planning
- For broadcast, require CRI ≥ 90 and flicker-free at the capture rate
- Add scene control + dimming for non-match use