## How much power do stage lights use?

Though industry studies in the UK have determined that on average only 9% of a theatre’s total energy use is attributed to stage lighting. As small as this may seem, a theatre can experience an electrical demand spike of approximately 240 kW/ hour or 92% above baseline during a performance.

## How do you calculate the power of stage lighting?

Knowing your available power source in Ampheres / Amps (A or I in the equation) plus the known voltage in your venue (volts / V), you can work out the maximum power (P) available in Watts – I (amps) x V (volts) = P (watts).

## What is lighting used for in theatre?

Lighting design in theatre goes beyond simply making sure that the audience can see the stage (although this is very important!). Light can be used to establish the time or location of a performance, or to create and enhance mood and atmosphere. Time and location are the ‘when’ and ‘where’ of a production.

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## What equipment do stage lights use?

Soft lamps, broad lights, fixed-focus lighting and florescent lighting are all commonly used as floodlights. Soft Lamps – diffuse lights and wraps around the subject mainly to reduce shadows on stage. They are boxlike and typically portable.

## Are LED stage lights dimmable?

Longevity- LED lighting manufacturers often quote the number of hours an LED light source will last in comparison to sources such as traditional tungsten halogen lamps. Most LED units offer dimming built inside the fixture, so there is no need to have a separate dimmer rack.

## How many lumens are stage lights?

These regulations are 85 lumens per watt and a maximum standby power of 0.5W. Unfortunately, most stage lighting equipment fails to meet these guidelines – including tungsten fixtures and even the latest LED fixtures.

## How many watts do you need per square foot?

The general rule of thumb for providing light for an area is a minimum of 30 watts per square foot. 50 watts per square foot is optimal.

## How do you calculate load?

Calculating an Electrical Load in a Simple Circuit Let Power = Voltage * Current (P=VI). Let Current = Voltage/Resistance (I=V/R). Apply Kirchoff’s Second Law, that the sum of the voltages around a circuit is zero. Conclude that the load voltage around the simple circuit must be 9 volts.

Calculating Maximum Load Multiply the amp number by the voltage. In the case of a 15-amp circuit at 120 volts, the formula would look like this: W = 120 x 15. The result is W = 1,800, so 1,800 watts is your maximum power load.

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## What are the 4 qualities of lighting design?

Light designers manipulate the controllable qualities of light at their disposal— direction (distribution), intensity, color, and movement —to create their design.

## What are the 3 types of lighting?

3 Basic Types of Lighting

• Ambient lighting.
• Accent lighting.

## What are the different types of lighting in Theatre?

Types of lighting

• Spot – has a hard-edged effect, used to light characters or elements on the stage.
• Fresnel – used for a softer edged effect, with a diffusing lens in front of the lamp.
• Flood – produces a clear wide-angled light, but there’s little control over the spread of the light.

## What are big stage lights called?

Lighting up the stage. The “ellipsoidal reflector spotlight,” or ERS, has been called by various names through the years. Theater professionals may refer to it as an “ellipse” or “ellipsoidal.” “Source Four” is a brand name, and that term is used, too.

## What is the best tool to use to hang a lighting instrument?

In stage lighting and sound a c-clamp, also referred to as a pipe clamp, is used to attach a larger piece of hardware, such as a lighting instrument, a speaker, or a dimmer, to a pipe or batten. Newer c-clamps tend to be constructed of aluminum, although steel is also available.

## What are the 6 functions of stage lighting?

Functions of Stage Lighting

• Visibility. If the audience can’t see the actors, everything else the lighting designer does is a waste of time.
• Mood. “Mood” (or “atmosphere”) is the evocation in the audience of the appropriate emotion.
• Composition.
• Plausibility.
• Reinforcement.
• Revelation of Form.
• Punctuation.