Brightness and light color according to pretty much a 20 Watt - Halogen bulb, super hence. Unfortunately, the durability of the LED is gruesome: Between half an hour and just a few weeks, only about 20% of installed bulbs last longer. (sad but true) Farms were / are the LED with a special LED transformer, because it can not be so. To make matters worse, the LED goodbye with catastrophic stench from the life. Our daughter was alone at home the other day when such a bulb is burned out, she was afraid that now comes up the whole house in an electrical short circuit, such a stench spread throughout the house (it really smells then electrically charred chemistry). The smell remained even for days in the house, despite airing. The manufacturer / distributor is accommodating and has the LED replaces the return, which is the one star (otherwise gäbs no)