The new fixture uses three reflector-type halogen bulbs. The first set lasted about 4-1/2 years. The second set lasted about 4-1/2 years. Since then I've replaced them twice, and one blew out this morning when I went to put the kettle on.
The single variable here is that my neighborhood Lowe's switched the brand they carry between lots two and three. As Dean Broder would no doubt point out, were he to suddenly try to wrest David Brooks' Long Distance Suburban Sociology crown from him, my response is clearly informed by the Vietnam War: I think the fuckers are lyin' to me. I think Lowe's switched brands because Sylvania, the corporate giant which still manufactures household goods in a peaceful glen somewhere, pays them more money or gives them more free goods in exchange for the valuable Lowe's concession. That, or they sponsor the annual Holland: Hardware, Hookers, and Hashish junket. It sure ain't that the bulbs are better.
And this is everywhere. My local grocery chain, the one formerly owned by the