We wanted to replace these bulbs 40W halogen lamps. Ceiling lamps and wall lamps should be "converted". In daylight, we have exchanged the lamps are turned on the lights and were first excited. The lamps have a pleasant shade and a good, sufficient brightness for staircase, living room, etc. They are suitable for bathrooms, kitchens in our view, too weak, there is needed more brightness - but that you can not chalk up the bulbs you can .... yes even stronger buy. The processing is also visible properly. The size of the lamps corresponds to that of halogen. The problem with these bulbs lies elsewhere. After the first joy of the day then came the evening and we found that all the light bulbs in spite ausgeschaltenem glimten so abstralten a little light. If you then turned on the light switch, they shone in full force. When you switch they shone permanently minimal continue (similar to an ambient lighting in the car or the like) Since the bulbs can not be fully off, only 3 stars.