After much searching and testing, I decided for this driver. Reason was that it is compact, small and not long and with max. 24 Watt has a sufficient reserve. I have thus converted 3 halogen lamps. In all 3 lamps the driver fit into it perfectly, because, as previously mentioned, the driver is quite compact. At all 3 lamps I have 3 LED lights, each with 3.5 watts, so each lamp 10.5 watts connected. Result: It works flawlessly. Immediate light without delay. No hum. Just as desired. Clear recommendation.