Works well with existing ceiling mounts. However, 3500K was harder than I could tell from the photos and I ended up having to go back and use 3000K LEDs. It just doesn't fit in my kitchen.
Pros
PERMANENT - Built to last an amazing 50,000 hours, meaning no replacement required for the next 45 years. Each 4 inch LED recessed lighting kit lasts 20 times longer than traditional recessed lights, perfect for any ceiling lighting including bedroom, bathroom, hallway, kitchen, office, basement, new and old renovations, indoors, outdoors, soffits or every room needs LED lighting.