I used these in my street lamps, we have no street lighting on our residential street. My apartment requires quite a bright light to make it seem not dark, and we were using a regular 300 w bulb that would burn out in just a couple months.
Excellent replacement for 3-way incandescent bulbs. The bulb fit right into my bedside 3- way lamp.
Buyer beware this is an inferior product. There seems to be a defective bath judging by the other comments about super early failures.
The bulb gets hot and the solder on the circuit bords start to crack or melt.
I was impressed with the brightness of the light but disappointed with the life of this bulb. Seemed very bright when first installed but after a day or two seemed to be pretty dim.
This one puts out a nice clear soft light, not yellowish. Works well, however the mid and high settings are not much different in brightness. The bulb is all you need.
These pitiful things are the quintessential definition of pure junk! Would not recommend. Extremely deceptive advertising in my option. It's hard to see the products you're trying to find, you have to wade through a bunch of paid promotions.