100W incandescent light bulbs

Many people have been told that "rough service" bulbs are a loophole in the Federal ban of 100W incandescent light bulbs.

Yes, it is a loophole in the sense that it is still legal.

No, it's not a useful loophole.

Anyone using a 100W bulb instead of a 60W is presumptively in search of a high level of brightness.

The problem with rough service bulbs is that they are very inefficient, even in comparison to standard bulbs.

A typical rough service 100W bulb only produces around 1000 lumens while standard bulbs produce over 50% more at 1600 lumens.

Some rough service bulbs:

https://www.1000bulbs.com/category/100-watt-standard-shape-light-bulbs/

My recommendation is the energy saving incandescents which produce almost as much light as a regular bulb while consuming only the legally allowed 72W such as the following:

http://www.homedepot.com/p/Philips-100W-Equivalent-Incandescent-A19-Soft-White-Dimmable-Light-Bulb-4-Pack-426049/203637038

It is an excellent replacement.

1. very close in brightness

2. instant on

3. dims identically

4. very similar color (a tiny bit less yellow)

5. very good color fidelity (100% CRI)