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luminous efficacy (lm/W)  incandescent 15  halogen 18  fluorescent 60  LED 75
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Osram Classic         1386lm   77W      230V                      fr h
Osram Classic          828lm   46W      230V                      fr h
Voltolux (de)          806lm  8.5W  220-240V  2700K 50/60Hz  68mA cn LED
Airam                  806lm  9.5W  220-240V  2700K 50/60Hz  73mA    LED
Osram Classic          540lm   30W      230V                      fr h
Osram                  525lm    7W  220-240V  2700K 50/60Hz  44mA cn LED      H
Philips Classic        504lm   28W      230V  2800K                  h        R
Megaman Spiral         500lm    8W  220-240V  2700K 50/60Hz  70mA    f        B
Osram                  375lm    5W  220-240V  2700K 50/60Hz  22mA cn LED e14
Rusta                  150lm    2W  220-240V  2700K 50/60Hz  17mA    LED e14
North Light Warmwhite  150lm    2W      230V  2800K    50Hz  43mA cn LED
North Light            120lm  2.8W  220-240V        50/60Hz  13mA    LED     2L
North Light              dec    1W      230V           50Hz 4.4mA    LED      S



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     Correlated Color Temperature:  warm 2700K  neutral 4000K  cool 5000K
                                      high contrast (work, reading) -->
     For work: 500lm/m2

                   https://dataswamp.org/~incal/data/LIGHTS
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