After the conversion, now burning in the kitchen 3x4 Watt LED lamps. Before burning 3x35Watt halogen lamps. I have exchanged with the transformer. Transformer 12 V, 0-20 watts. Burning time per day 3-4 hours. The lamps fit well in the versions, keep firmly and are purely visual point of view even a little brighter than the Halogen lamps .. A protective cover over the bulbs would be better, because during installation, there is a contact with the LED leaflets. Hue is also okay, warm white. I just hope that they will last. Investment costs for transformer and 3 LED lamps 38.00. After 4 weeks, everything super.