
It's great when your current lights are as breathable as mine. So bad in winter that cold air rushed through them like water. Since a traditional bulb needed air space, the only remedy was to cover the light with plastic, which is ugly if the bulb burns out, and not very efficient. These LED lights only take up space in the jar so I was able to seal the jar with aluminum foil tape which combined with the LED gives an excellent insulation factor. Now my little bathroom stays warm!