PangPang ToolsFloodlight Beam Footprint Estimator: Relating beam angle to mounting height — Worked Guide
Understanding relating beam angle to mounting height requires more than reading the final number. This guide works through the actual inputs and calculation example for floodlight beam footprint estimator, then identifies limitations to check when the conditions change.
Tool walkthrough based on an illustrative example; this page is still awaiting an independent content review. Do not treat it as official guidance or a verified regulatory result.
Open Floodlight Beam Footprint Estimator and check the worked inputs
What are you checking when relating beam angle to mounting height?
Floodlight Beam Footprint Estimator is an interactive, mobile-friendly calculator for browser-local estimates. It displays labelled quantities so that inputs, assumptions and outcomes stay clear. Vertical aiming and level ground only. A geometrical beam cone is not an illuminance, glare or lighting-design prediction.
Start with the practical question: relating beam angle to mounting height. Identify which values are given, which are assumptions and what the calculated output actually describes. The tool's guidance below sets the scope; it is not an independent certification or legal decision.
Which inputs should you prepare first?
Enter your actual values and units: Mounting height (m), Full beam angle (°), Number of fixtures. Vertical aiming and level ground only. A geometrical beam cone is not an illuminance, glare or lighting-design prediction.
Press Calculate to see a labelled result breakdown. Use current, verified rules and specifications rather than the example values for consequential decisions.
For a reproducible trial, the worked example uses: Mounting height (m): 7.5 · Full beam angle (°): 60 · Number of fixtures: 4. Enter the same values first, then change one parameter at a time to see what changes.
- Enter your actual values and units: Mounting height (m), Full beam angle (°), Number of fixtures.
- Vertical aiming and level ground only. A geometrical beam cone is not an illuminance, glare or lighting-design prediction.
Worked example: inputs and displayed result
Example inputs: Mounting height (m): 7.5 · Full beam angle (°): 60 · Number of fixtures: 4.
Example result: Ground beam diameter: 8.660254 m. A worked example using the listed default inputs. Vertical aiming and level ground only. A geometrical beam cone is not an illuminance, glare or lighting-design prediction.
The example uses the published calculator's own input assumptions. The displayed result is conditional on those exact settings; changing units, dates or other fields can change it.
How to interpret the result and its limits
Do not turn the calculator output into a purchasing, engineering or financial decision without checking the actual conditions.
Is the output a legally or technically certified result? No. Check verified rates, conditions and underlying rules first. Vertical aiming and level ground only. A geometrical beam cone is not an illuminance, glare or lighting-design prediction.
A final verification checklist
Before relying on the result, confirm the input values and the meaning of every displayed unit. For relating beam angle to mounting height, it is especially important to retain the exact context in the worked example rather than carrying the number into a different scenario.
Re-run the calculation with your real measurements or verified amounts and compare the result with the applicable source document, manufacturer's information or official rules where these matter. The calculator explains an estimate, not approval of an installation, contract or entitlement.
- Check units, dates and input definitions
- Reproduce the example before entering real values
- Read the stated limits and independently verify any regulated or safety-critical application
Related tools
Use the tools to verify the steps against your own files or text.