
I bought these to replace the 20w halogen bulbs under the hood over my cooker. The light switch has three positions: half light, full light and off. These bulbs work perfectly in all three modes - they turn on instantly, can be turned on at half brightness, and go out instantly. No noise, great light. They are longer than halogen bulbs so I would suggest making sure they fit. I also liked that each bulb comes in its own little box - great for storage.