Inputs
Results
Derated driver rating
--
W
Required rating with margin
--
W
Remaining headroom
--
W
Remaining headroom percentage
--
%
Headroom status
--
Calculation details
- Derated driver rating
- -- W
- Required rating with margin
- -- W
- Remaining headroom
- -- W
- Remaining headroom percentage
- -- %
- Meets entered planning margin
- --
- Headroom status
- --
Important notes
- This comparison is not a substitute for the driver datasheet or product-specific thermal calculations.
- Electrical installation and Australian product requirements require qualified review.
Formulas
- \(\displaystyle P_{\mathrm{derated}} = P_{\mathrm{rated}}(1-d)\)
- \(\displaystyle P_{\mathrm{required}} = P_{\mathrm{load}}(1+m)\)
- Do not override the manufacturer minimum/maximum load, ambient, enclosure, or installation data.
Estimate driver headroom after an ambient derating assumption and a requested load margin.
LED Driver Headroom 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.