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Light output (in lumens)
Measuring the performance of a lamp in lumens allows direct comparisons
oflight quantity (which is the service actually offered by the lamp).
Comparisonsbased on wattage are not meaningful any more and can be misleading.
Look for1300-1530 lumens for the equivalent of a 100W incandescent bulb,
920-1060 lumensfor a 75W,
700-810 lumens for a 60W,
410-470 lumens for a 40W and
220-250lumens for a 25W bulb.