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.
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