Begin with the effect you need
A beam fixture concentrates light into a narrow shaft for aerial effects. It is different from a wash, which spreads colour across a stage or surface, and from a spot or profile fixture intended for broader image projection. If the brief calls for visible shafts, crossing patterns and prism effects, a moving head beam is the relevant format.
Six points to compare before ordering
Beam angleA smaller angle produces a tighter shaft. Check the beam diameter at realistic working distances, not only the headline angle.
Photometric dataCompare illuminance at the same distance and check how the measurement was stated. Use it as a planning reference for the intended venue.
Colours and gobosCount the usable choices and confirm whether the wheel layout supports the looks required by the show.
Prisms, frost and focusPrisms multiply the beam; frost softens it; focus keeps gobos and aerial effects usable at different throws.
Movement and correctionReview pan and tilt range, 16-bit resolution, movement speed and automatic position correction for repeatable programming.
DMX and RDMCheck channel modes against console capacity. RDM can assist with addressing and status where the complete control system supports it.
Use beam diameter to judge coverage
A narrow beam stays concentrated over distance. For a nominal 2° beam, diameter increases as the throw becomes longer, so trim height and fixture position still matter. Read the manufacturer’s photometric table together with venue drawings, sightlines and the haze plan. A bright figure at short range does not by itself show how the fixture will read across a full stage.
Plan for day-to-day rental use
- RiggingConfirm clamp positions, safety points, base orientation and access around the yoke.
- Power and signalRecord fixture load, connector type, DMX pin format and addressing method in the rental package.
- TransportChoose case quantity and orientation around truck space, handling weight and turnaround time.
- ServiceFor lamp-based fixtures, plan lamp hours, replacements, cleaning and optical alignment as part of fleet maintenance.
- EnvironmentRespect the stated IP rating. An IP20 product belongs in a dry indoor position unless suitable protection is engineered for the job.
A practical request for quotation
State the application and quantity first. Add the destination, venue or throw distance, console, required effects, indoor or outdoor conditions, case requirements and delivery date. That information makes it easier to compare the fixture specification with the actual job and avoids quoting a product that is unsuitable for the environment.
PROJECT ENQUIRY
Send the venue and control requirements
We can check the published product data against the throw distance, programming needs and rental workflow.
Ask about moving head beams