I love my lightbulbs and they work well. No degradation in illumination. It is pretty blinding, but it's definitely what we need.

The advertisement says not dimmable. You have to unscrew them and put them into the included hook for them to turn on. Bulbs are in lamps but do not light up when power is off.

Bright white lamination, even better than the original halogen bulb. The bulbs get warm, but not egg cooking hot like the old halogens. They are a serviceable bulb, and were the best of the various ones i tried.

They're fine at full brightness but they flicker when dimming. Cannot recommend these bulb in conjunction with dimmer.