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Frequently Asked Questions
How accurate is the Camera Lux Meter?
The tool calculates relative surface illuminance using the CIE 1931 photopic curve. It is great for comparative room testing, but should not replace calibrated NIST-traceable photometers.
Do you sell light bulbs or hardware?
No. LightBrightness.com is a 100% independent engineering and educational reference platform. We do not sell bulbs, fixtures, or electrical services.
Can I cite your charts in my design project?
Yes! You are welcome to reference our IESNA room charts, lumens-to-watts tables, and formulas for educational or interior design purposes with a link back to LightBrightness.com.