First off, it took me some research to decide on what kit to buy. I compared with some competitors and chose this due to availability as well as buying some other kits with it. I will also mention that I needed a set easily compatible with a powered USB hub connected to Alexa for control. Another brand had a weird thing about it being very important it didn’t go above 2.1 amps. Just a weird feeling on that. So I got this set. Very impressive. I actually didn’t use the trolley lights as I have it already powered up with a motor and lights to run an Elliptical track around my village. Looks great with my Christmas Village that’s in work. And my interactions/Q&A with the company have been great. I bought this with a couple others and have no regrets. I intend to keep using this company for more lights. For what it’s worth it took me 10 days from order to arrival (US west coast) which was better than I thought.