Buying stage lighting from a manufacturer or reading a spec sheet involves terminology that isn’t always explained. This glossary covers 30 terms that come up regularly in B2B stage lighting sourcing — what they mean and why they matter.
A
Auto Mode A control mode where the fixture runs through pre-programmed color and movement sequences automatically, without a DMX controller or sound input. Useful for ambient and background lighting in venues without technical operators.
See also: DMX512, Music Sync
Aging Test A quality control procedure where fixtures run continuously for an extended period (typically 24–48 hours) before shipment. Catches early component failures — LED drivers, fans, connectors — that would otherwise show up after delivery. A manufacturer who runs aging tests is investing in reliability.
B
Barn Doors Adjustable metal flaps attached to the front of a par light or fresnel fixture. Used to shape and control the edges of the light beam — blocking light from spilling onto areas where it isn’t wanted.
Beam Angle The angle of the light cone projected by a fixture, measured in degrees. Narrow beam angles (2°–5°) produce tight, concentrated shafts of light. Wide beam angles (45°–60°) produce broad, even coverage. Matching beam angle to venue size and ceiling height is one of the most important buying decisions.
Related article: How to Choose Beam Moving Head Lights for Clubs, Concerts, and Rental Companies
Beam Moving Head A moving head fixture designed to produce extremely narrow, concentrated beams for aerial effects. Typical beam angles of 2°–5°. Used in concerts, nightclubs, and festivals where visible light shafts are the primary visual goal.
Related article: Moving Head Lights Explained: Beam vs. Spot vs. Wash vs. Hybrid
C
CE Marking A certification mark required for products sold in the European Economic Area. Indicates the product meets EU safety, health, and environmental requirements. Relevant for buyers importing into Europe or markets that accept CE as a quality standard.
CMY Color Mixing A subtractive color mixing system using Cyan, Magenta, and Yellow filters to produce a wide range of colors. Common in high-end moving head fixtures. Produces smoother color transitions and a wider gamut than fixed color wheels.
COB (Chip on Board) An LED configuration where multiple chips are mounted directly on a substrate as a single unit, producing a larger, softer light source than individual LEDs. COB par lights produce even, flattering output with high CRI — preferred for front wash in churches, TV studios, and corporate events.
Color Rendering Index (CRI) A measure of how accurately a light source renders colors compared to natural light, on a scale of 0–100. Higher CRI (90+) means colors appear more accurate and natural. Important for applications where skin tones, product colors, or broadcast accuracy matter.
Color Temperature Measured in Kelvin (K). Lower values (2700–3000K) produce warm, amber-toned white light. Higher values (5000–6500K) produce cool, blue-toned white. Most stage lighting applications use 3000–4000K for a neutral, flattering result.
Color Wheel A rotating disc containing fixed color gels or dichroic filters inside a fixture. Spinning the wheel positions different colors in the light path. Standard on most moving head fixtures as a quick color selection method.
D
DMX512 The industry-standard digital control protocol for professional stage lighting. A DMX controller sends signals to fixtures via cable, controlling color, intensity, position, and effects. “512” refers to the number of control channels per DMX universe. Essential for professional venues, rental companies, and productions requiring programmed cuing.
Related article: DMX512 vs Music Sync: Which Lighting Control Mode Is Right for Your Venue?
DMX Channel Each controllable parameter of a DMX fixture uses one channel — color, intensity, pan, tilt, gobo selection, etc. A simple par light might use 4 channels; a complex moving head might use 20+. The channel count determines how many fixtures can be controlled in one DMX universe (maximum 512 channels total).
F
FOB (Free on Board) An Incoterm specifying that the seller delivers goods to a named port and loads them onto the buyer’s vessel. The buyer takes responsibility for freight, insurance, and import costs from that point. Common payment and shipping term in China-to-international trade.
Related article: Import Stage Lighting from China: A First-Time Buyer’s Guide
Fresnel A type of lens with concentric stepped rings that produces a soft-edged beam. Fresnel fixtures are common in theater and TV studio applications where soft, even front wash is needed.
G
Gobo A metal or glass disc with a pattern cut or etched into it, placed in the optical path of a spot fixture to project a shape or texture. Metal gobos project simple shapes (stars, circles, abstract patterns). Glass gobos project color images. Used in theater, corporate events, and wedding productions.
H
Haze Machine A device that produces a fine atmospheric mist that makes light beams visible in mid-air. Different from a fog machine (which produces denser, lower-lying fog). Beam moving head lights are significantly more effective with haze — the aerial shaft effect that defines beam fixture performance is largely invisible without it.
Hybrid Moving Head A moving head fixture that combines beam, spot, and wash capabilities in a single unit. More expensive and heavier than dedicated fixtures, but provides rental companies and multi-use venues with maximum flexibility from one product.
Related article: Moving Head Lights Explained: Beam vs. Spot vs. Wash vs. Hybrid
I
IP Rating (Ingress Protection) A two-digit rating indicating a fixture’s protection against solid particles and liquids. The first digit covers dust (0–6); the second covers water (0–9). IP65 = dust-tight + protected against low-pressure water jets. The minimum rating for outdoor use. No IP rating = indoor only.
Related article: Outdoor Festival Lighting: What You Need Before You Buy
L
LED (Light Emitting Diode) The dominant light source technology in modern stage lighting. Advantages over traditional lamp sources: lower power consumption, longer lifespan (50,000+ hours), no lamp replacement, consistent color output, lower heat output.
Lumen The unit of total light output from a fixture. More useful than wattage for comparing actual brightness between fixtures. Two 200W fixtures from different manufacturers can have significantly different lumen outputs depending on LED efficiency and optical design.
M
Master-Slave Mode A control configuration where one fixture (the master) controls the behavior of connected fixtures (slaves) without a DMX controller. Useful for simple multi-fixture setups where all fixtures should run the same program.
MOQ (Minimum Order Quantity) The smallest quantity a manufacturer will produce or sell in a single order. Relevant for OEM projects and bulk purchasing. MOQs vary significantly between manufacturers and product types.
Related article: OEM Stage Lighting: What It Is and How to Start Your Own Brand
Music Sync (Sound Active Mode) A control mode where a built-in microphone drives the fixture’s behavior in response to audio input. No controller required. Practical for bars, clubs, and venues without lighting operators. Limitation: responds to all sound, not just music.
Related article: DMX512 vs Music Sync: Which Lighting Control Mode Is Right for Your Venue?
O
ODM (Original Design Manufacturing) A manufacturing arrangement where the buyer works with the factory to modify an existing product or develop a new one to specific requirements. Deeper customization than OEM brand-only rebranding. Requires higher MOQ and longer lead time.
OEM (Original Equipment Manufacturing) A manufacturing arrangement where the factory produces a product that the buyer sells under their own brand. Can range from logo-only rebranding to full product customization.
Related article: OEM Stage Lighting: What It Is and How to Start Your Own Brand
P
Pan and Tilt The two axes of movement in a moving head fixture. Pan is horizontal rotation (left-right); tilt is vertical rotation (up-down). Pan and tilt range, speed, and precision are key performance specifications for moving head fixtures.
Par Light A fixed-position wash fixture that delivers consistent color or white light to a specific area. Simple, reliable, and cost-effective. Available in standard LED, COB, zoom, and IP65 configurations.
Related article: LED Par Lights Explained: Types, Uses, and How to Buy the Right One
Prism An optical element inside a beam or hybrid moving head that splits a single beam into multiple parallel beams. Common configurations: 8-facet, 16-facet, 24-facet. Rotating prisms create dynamic multi-beam effects. A strong prism system significantly multiplies the visual impact of a single fixture.
R
RGBW A four-color LED configuration: Red, Green, Blue, White. The dedicated white LED produces true white light that RGB mixing cannot replicate accurately. Enables clean whites, pastels, and accurate skin tones. The preferred configuration for most venue and rental applications.
Related article: RGBW vs RGB Lighting: What’s the Difference and Which One Should You Buy?
RoHS Restriction of Hazardous Substances. An EU directive limiting the use of specific hazardous materials in electrical equipment. Relevant for buyers importing into the EU and many other markets that align with EU standards.
S
Spot Moving Head A moving head fixture designed for precise image projection — gobos, patterns, logos — and accurate performer highlighting. Wider beam angles than beam fixtures, with more advanced optical systems for image clarity.
Related article: Moving Head Lights Explained: Beam vs. Spot vs. Wash vs. Hybrid
W
Wash Moving Head A moving head fixture that delivers wide, even color coverage with smooth transitions. Used for stage fill, background color, and atmosphere. RGBW color mixing produces millions of color combinations. Preferred for churches, wedding venues, corporate events, and theater.
Related article: Wash Lights vs Par Lights: What’s the Difference and Which Do You Need?
Have questions about any of these terms or how they apply to your project? Contact MoondiLights →
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