Beam angle and mounting height can provide a quick footprint estimate, but they do not replace photometric design.
What to record
- Mounting height or throw distance to the target plane.
- Nominal beam angle and whether it is full-width half-maximum data.
- Overlap, aiming, glare, spill, and vertical-plane review requirements.
Calculator output is an estimating aid. Confirm project-specific requirements, products, electrical work, and compliance decisions with the responsible professional.