We have the 35W halogen downlights in our house. They are around 10 years old now and we're starting to have to replace some lights as they blow. I thought I would replace them with led downlights instead. I bought some cheap led downlights (just the bulb part) at bunnings that fit. When I put the bulbs in they worked fine for a while and then after a few days the lights would work for a while then blink and go out then come back on for a while then blink and go out again (and then the process keeps repeating). So the bulbs aren't blowing but they are not staying on either. I have since replaced them with halogen bulbs. Do you need to have a special type of transformer for led lights rather than halogen lights. The transformer is 50W and the led lights were 13w (i think but don't hold me to it). The led lights seemed to get a bit warm. Nothing like the halogen lights but warmer than I was expecting. My thoughts were that the transformer just converts the AC to 12V and should be the same for both but was just checking. Maybe I should have bought the better quality led downlight bulbs.