Inputs
Results
Horizontal throw to aim point
--
m
Geometric beam diameter
--
m
Geometric coverage area
--
m2
Overlap spacing estimate
--
m
Calculation details
- Horizontal throw to aim point
- -- m
- Geometric beam diameter
- -- m
- Geometric coverage area
- -- m2
- Overlap spacing estimate
- -- m
- Photometry review required
- --
Important notes
- Check IES/LDT photometry, tilt limits, glare, spill, shielding, wind loading, mounting structure, IP rating, and switching or sensor controls.
- Electrical installation and Australian outdoor-lighting requirements need qualified review; this calculator makes no automatic compliance claim.
Formulas
- \(\displaystyle T = h/\tan(\alpha)\)
- \(\displaystyle D = 2T\tan(\theta/2)\)
- \(\displaystyle S = D(1-O)\)
- Geometry only; manufacturer photometry controls the final floodlight result.
Estimate geometric floodlight throw, beam diameter, area, and overlap spacing from mounting and aiming assumptions.
Floodlight Coverage Calculator is a planning aid. Keep the target source, product data, measurement method, and project assumptions with the result. Confirm compliance, installation, certification, and safety decisions with the responsible professional.