Lighting technology and event lighting
24.01.2024
· by
Christian “Fino” Beyer

Lighting technology and event lighting: the practical guide to good stage pictures

Understanding event lighting: fixture types, colour temperature, lux, CRI, DMX and lighting design – explained by a Master Craftsman in Event Technology.

Event lighting for atmospheric stage pictures by photon

Lighting determines how an event comes across before the first word is spoken. It guides the eye, creates atmosphere, separates the stage from the room and turns a hall into a place. Good lighting goes unnoticed – bad lighting never does. This article explains what event lighting consists of, what matters on the technical side and how fixtures turn into a picture.

Why light makes the picture

Event lighting does three things at once: it provides visibility (speakers, artists and products must be recognisable), it creates atmosphere (colour and contrast generate emotion) and it delivers dramaturgy (light guides the audience through the running order, sets accents and carries the brand). It is the interplay that creates a stage picture – not the number of fixtures.

In short: what matters is not “how much light”, but “which light goes where”.

If you wish, we take on exactly these decisions in full – from planning the stage lighting through programming to operation: lighting technology for the stage.

LED has taken over the field – almost

Today, event lighting is predominantly LED: low power consumption, hardly any waste heat, colour mixing directly in the fixture (RGBW, some with amber/lime for richer tones), no changing of colour gels. Conventional technology (halogen/tungsten) still has a niche, though – its warm, soft dimming behaviour remains valued at classic galas or in front of the camera. For the majority of applications, however, LED is the standard – also for reasons of energy and sustainability.

The tools: fixture types

Each type has a job to do. The most important ones:

  • Wash / PAR – broad, soft light for colour and the overall mood. The all-rounder for surfaces and backgrounds.
  • Profile (profile spot) – a sharply defined beam of light that can be shaped; projects gobos, patterns or logos and creates precise accents.
  • Spot – directed light with a defined beam, for example for speakers or objects.
  • Moving head – moving fixtures in three basic types: wash (area/colour), spot (sharp, with gobos/prisms) and beam (extremely narrow, hard beam for aerial effects). The most flexible tool in show lighting.
  • Blinder – powerful light aimed at the audience for moments of impact.
  • Strobe – flashing light for accents and energy.
  • Battens / LED bars and uplighters – for lines, back walls and illuminating architecture.
  • Followspot – manually operated light that follows a person.

What light can really do: the key metrics

This is what separates expert planning from gut feeling:

  • Lumens vs. lux: lumens describe the total luminous flux of a fixture, lux the illuminance that actually reaches the object. In practice, it is the lux at the target that counts – which depends on output, beam angle and distance.
  • Beam angle / zoom: a narrow angle concentrates the light and carries far, a wide angle floods areas. Many LED fixtures now offer a continuously variable zoom.
  • Colour temperature (Kelvin): warm white (approx. 3,200 K) feels cosy and elegant, daylight white (approx. 5,600 K) businesslike and energising. The choice shapes the entire mood – and has to match the camera image.
  • Colour rendering (CRI): how naturally colours and, above all, skin tones are reproduced. For streaming, photography and film, a high CRI (ideally above 90) is crucial – cheap light makes faces look sallow. If you are broadcasting in hybrid format, you should coordinate this early on with the streaming and video technology.

Control: DMX and the lighting desk

Control is traditionally handled via DMX512 – the standard protocol in event technology. One DMX universe comprises 512 channels; depending on its range of functions, each fixture occupies several of them (dimmer, colour, pan/tilt, gobo …). Larger rigs use several universes, which are distributed via network protocols such as Art-Net or sACN. At the desk (for example a grandMA), the fixtures are addressed, combined into groups and stored in lighting states (cues), which are recalled as the show progresses or automated via timecode.

What matters is the groundwork: clean addressing, a well-thought-out patch and enough reserve capacity in the power and data lines. This is where planning pays off, long before the first fixture lights up.

From fixture to picture: lighting design

Good lighting follows a principle that comes from film and theatre and can be applied to any stage:

  1. Key light (from the front): makes the person in action visible – not blasted flat from the front, but coming in slightly from the side.
  2. Backlight (from behind): separates the person from the background and adds depth. The most frequently underestimated light of all.
  3. Fill light / side light: removes harsh shadows and adds shape.
  4. Background / back wall: colour and texture behind the action – this is where the atmosphere is created.

Added to this are colour dramaturgy (brand colours, changes of mood), accents (gobos, beams) and the timing of the cues. Complex shows are created in advance on the computer: with previsualisation (previz), the lighting design is built and programmed virtually before the equipment is even on the lorry – which saves time and stress on site.

Lighting to suit the occasion

  • Conference / meeting: even, glare-free, camera-friendly colour temperature, high CRI. The lighting should not draw attention to itself but show faces and slides clearly – to match the conference technology.
  • Gala / corporate: a warm overall mood, elegant accents, brand colours on walls and stage.
  • Concert / show: dynamic, high-contrast, movement, beams and effects in time with the music – supplemented on request with stage pyrotechnics.

The most common mistakes

  1. No backlight – the stage looks flat, people merge into the background.
  2. Wrong colour temperature for the camera image – mixed warm and cool light looks messy on the stream.
  3. CRI too low – skin tones look sickly, especially when broadcast.
  4. Glare – light sources in the field of view of the audience or camera.
  5. Power and DMX underestimated – too little reserve capacity, missing data paths, no plan B.

Avoid these five mistakes and you already have a solid picture. The design does the rest.

Lighting that’s spot on – with photon

We plan, program and run event lighting from conferences to shows – from equipment selection through previz and programming to live operation at the desk. You can find our range on the lighting technology page and all the equipment in the rental shop on pho-ton.de (in German) – much of it also available to buy as used event technology. Our article on LED wall and video technology shows how light, sound and video come together to form a single picture.

“Light isn’t what you see – it’s what it lets you see.”

Planning an event and want to show it in the right light? Talk to us.

Related: Lighting equipment hire – equipment and daily rates at a glance.

Frequently asked questions

What is the difference between lumens and lux?

Lumens are the total luminous flux of a fixture, lux the amount of light that actually reaches the object. For planning, what counts is the lux value at the target.

Which colour temperature is the right one?

Warm white (approx. 3,200 K) for a cosy, elegant atmosphere; daylight white (approx. 5,600 K) for businesslike occasions. When cameras are in use, the colour temperature must be consistent and camera-friendly.

Why is the CRI value important?

It describes how naturally colours and skin tones are reproduced. For streaming, photography and film, it should ideally be above 90.

What does DMX mean?

DMX512 is the standard control protocol for lighting technology. One universe has 512 channels; each fixture occupies several of them. Larger systems use several universes via Art-Net or sACN.

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