AulumensAustralian lighting calculators

LED Wattage Equivalent Table

Approximate old-lamp wattage, lumen output and LED load ranges for Australian lighting estimates.

25 W incandescent
Old lamp: 25 WLED load: 2-4 W
40 W incandescent
Old lamp: 40 WLED load: 4-6 W
60 W incandescent
Old lamp: 60 WLED load: 7-10 W
75 W incandescent
Old lamp: 75 WLED load: 10-13 W
100 W incandescent
Old lamp: 100 WLED load: 13-18 W
50 W halogen downlight
Halogen: 50 WLED load: 5-8 W
Retrofit output and load comparisonRetrofit comparisons should keep output and load beside each other before reading energy or appearance tradeoffs.
Table PDFLED Wattage Equivalent Table

Download the table with the page URL and retrieval date for offline lighting checks.

Old lamp contextApproximate light outputApproximate LED loadUse boundary
25 W incandescent200-300 lm2-4 WCompare lumens first; wattage equivalence is only a rough retrofit cue.
40 W incandescent400-500 lm4-6 WCheck beam spread, diffuser loss and maintained light before matching by watts.
60 W incandescent700-850 lm7-10 WUse the fitting lumen value when planning room lighting.
75 W incandescent900-1,100 lm10-13 WDo not infer suitability from this range alone.
100 W incandescent1,300-1,600 lm13-18 WTreat this as a load estimate, not a model selection rule.
50 W halogen downlight350-600 lm5-8 WMatch beam angle, trim output and task plane performance before layout checks.

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