130 volt incandescent products work with standard 110-120 volt household systems. The advantage of 130 volt products is that they protect the incandescent filaments from power spikes (the source of most incandescent bulb failures). 130 volt bulbs are slightly less bright than 120 volt, but offer substantially longer life.
Customer Rating: Summary: Bulbs Received OK -- Shipping Expensive 2008-07-28 Comment: The bulbs arrived in a reasonable time with no damage visible. The one bulb that I installed worked fine and I assume the others will also. Thier cost was reasonable but the shipping ($8.90 if I recall correctly) seemed a little high (twice the cost of the bulbs themselves). Overall, I am satified in that these bulbs were not available anywhere locally that I could find.