I would like to see their light production in lumens. Here's the trick: they are rated for 130 volts, so at the normal 120 house voltage they will be dimmer than 120 volt bulbs from the store. Since power is voltage squared divided by resistance, a bulb rated 100 watts at 130 volts will only be 85 watts at 120 volts. Since it is running cooler, less visible light will be produced and the lumen rating will be less than that 85%. That will vary some because the filament's resistance changes based on temperature, but don't expect it to be quite as bright as a pre-2012 100-watt bulb.
bookmark info
Thanks for info. I remember seeing similar discussions on other threads near the end of 2011.