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.
A Fresnel lantern (pronounced frəˈnɛl 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.
House and work lights are usually off during performances but are occasionally included in the lighting design to establish focus or emphasize plot elements. When the house lights are not on a dimmer, the switch is usually under the control of the stage manager.
While a LED outputs light, it is not a traditional “light bulb”, but rather an electronic component which generates when voltage passes through. In the 50+ years since that first LED, technology has brought these tiny little “lightbulbs” a long way, to the point of breaking into the stage lighting industry in the last 10 years.
PAR CANS Lights. PAR Cans are the most widely used light for concerts, clubs, and theatrical lighting. PAR cans come in a wide variety of sizes and shapes; from the minuscule PAR16 to the 1000 watt PAR64 cans. Par Cans For lighting stages and theaters, you will find that PAR cans are used much more commonly than any other type of luminary.
Scoop 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.