top | item 13583070 (no title) tomsaffell | 9 years ago Not in general. They are both around 60 lm/W. Of course there are exceptions. https://en.wikipedia.org/wiki/Luminous_efficacy#Lighting_eff... discuss order hn newest wlesieutre|9 years ago 60 lm/W is very low these days. Commercially available screw-base A21 bulbs like Cree's "100W replacement daylight" (17,000 lumens at 15W) are up over 110 lm/W. You can get that for $14 at Home Depot.http://creebulb.com/100-watt-replacement-daylighthttp://www.homedepot.com/p/Cree-100W-Equivalent-Daylight-500...
wlesieutre|9 years ago 60 lm/W is very low these days. Commercially available screw-base A21 bulbs like Cree's "100W replacement daylight" (17,000 lumens at 15W) are up over 110 lm/W. You can get that for $14 at Home Depot.http://creebulb.com/100-watt-replacement-daylighthttp://www.homedepot.com/p/Cree-100W-Equivalent-Daylight-500...
wlesieutre|9 years ago
http://creebulb.com/100-watt-replacement-daylight
http://www.homedepot.com/p/Cree-100W-Equivalent-Daylight-500...