Haven't used them in a dimming system but it's a nice feature if you need it. In terms of durability I expect they will last as long as other well known brands I have used in the past. They also come with their own glass cover so you can plug them in without having to use the glass circles that come with the lamp heads in your track lighting. You are naturally hot. I am considering using LED bulbs to reduce the high heat as this tends to discolor the rail mount and even the ceiling a bit. I've never had a fire in the 15 years that I've remodeled the kitchen and installed track lighting with replacement 12v 50w halogen bulbs, but I have severe brown discoloration where the rail heads hang.
Ceiling lamp Yeelight YLXD013-B, 50 W, number of lamps: 1 pcs., color: white
62 Review
Lamp LED Xiaomi Mi Smart LED Bulb Warm White (XMBGDP01YLK), E27, 8 W, 2700 K
26 Review
Lamp LED Yeelight Smart LED Bulb 1S, YLDP13YL, E27, 8.5 W, 6500 K
43 Review
Smart bulb Yandex with Alice, base E27, 8 W, RGB color
76 Review