The Electronic Theatre Controls (ETC) Source Four (also known unofficially as Source 4 or S4) is an ellipsoidal reflector spotlight (ERS) used in stage lighting. The Source Four is widely used by professional theaters across the globe.Also, what type of lamp is used in an ETC Source 4?
Unlike some other lighting fixtures, there's only one type of lamp that you can use in a Source Four, and that's an HPL lamp. As you know, there are multiple wattages (and voltages) of HPL lamps available, including 375W, 575W, and 750W lamps.
Additionally, how much does a source 4 weight? Source Four
| Fixture Name: | Fixture Weight (Imperial and Metric): | Shipping Weight (Imperial and Metric) |
| 36 Degree | 14 lbs/6.3 kgs | 20 lbs/9.1 kgs |
| 50 Degree | 14 lbs/6.3 kgs | 20 lbs/9.1 kgs |
| 70 Degree | 17.4 lbs/7.9 kgs | 23.4 lbs/10.6 kgs |
| 90 Degree | 17.7 lbs/8 kgs | 23.7 lbs/10.8 kgs |
Keeping this in view, what is a Leko light?
A Lekolite (often abbreviated to Leko) is a brand of ellipsoidal reflector spotlight (ERS) used in stage lighting which refers to the half-ellipsoidal dome reflector within which the instrument's lamp is housed.
What does etc stand for in lighting?
Electronic Theatre Controls
What type of reflector is used in a PAR lamp?
Cards
| Term What are the parts of a lamp? | Definition An envelope, a filament and a base. |
| Term What type of reflector is used in a Par lamp? | Definition Parabolic Reflector |
What is an HPL lamp?
HPL incandescent The proprietary HPL (High Performance Lamp) lamp uses a compact filament, which concentrates the most light where it is efficient in an ellipsoidal reflector. At 575 watts, HPL lamps can produce as much light as an older 1000 watt lamp.Which of the following is a standard wattage lamp for a Source Four PAR?
The
light output of a 575 watt HPL in a
Source Four PAR is listed as comparable to that of a 1000 watt traditional PAR64. The
Source Four PAR can also be fitted with 375, 550, or 750 watt HPL
lamps.
Construction.
| Lens | Abbreviation | Field Angle |
| Very Narrow Spot | VNSP | 15° |
What is par in light?
PAR is photosynthetic active radiation. PAR light is the wavelengths of light within the visible range of 400 to 700 nanometers (nm) which drive photosynthesis (Figure 1). PAR is a much used (and often misused) term related to horticulture lighting.What is a Fresnel light?
A Fresnel lantern (pronounced fr?ˈn?l or fruh-nel) is a common lantern used in theatre, which employs a Fresnel lens to wash light over an area of the stage. The lens produces a wider, soft-edged beam of light, which is commonly used for back light and top light.What is a ellipsoidal light?
Ellipsoidal reflector light (abbreviated to ERS, or colloquially ellipsoidal or ellipse) is the name for a type of stage lighting instrument, named for the ellipsoidal reflector used to collect and direct the light through a barrel that contains a lens or lens train.What is a scoop light?
In stage lighting, an ellipsoidal reflector floodlight (sometimes known by the acronym ERF which is often pronounced "erf"), better known as a scoop, is a large, simple lighting fixture with a dome-like reflector, large high-wattage lamp and no lens.What is a cyc light?
Cyc Lights. Cyc Lights. Cyc lights throw a sheet of light. Traditionally with a "J" shaped reflector, they are able to sit on the floor or hang fairly close to the backdrop and throw an even sheet of light up and down. The bottom of the "J" is for the short throw and the top part is for the longer throw.How do gobos work?
A gobo is a template that light shines through to project an image onto a surface. The term “gobo” is an acronym that stands for “GOes Before Optics.” Gobos are used in specialty gobo lights that are designed to shine through the gobo template and project the design from the template onto a surface.What are the lights on a stage called?
The followspot (also called a spotlight, trackspot, lime (uk), or dome) is a lighting instrument that is moved during a performance by an operator or by DMX control to provide emphasis or extra illumination and usually to follow a specific performer moving around the stage.What is par36?
In the lighting industry, the acronym "PAR" stands for "parabolic aluminized reflector." PAR bulbs use a parabolic mirror reflector to direction light into a specific beam angle that is unfocused around the edges. Our PAR36 bulbs have beam angles that vary from very narrow spot lights to very wide flood lights. 
