Bought a bunch of Hyperikon retro LED lights to start to retrofit all the can lights I have. These have spring tension arms (spring wire). And expect to fit into slots in the can. My can does not have the slots. The old incandescent reflector had some flat spring metal fingers that fit against the inside of the can. The new retrofit lights with the spring tension arms don't really hold the light in properly. The spring tension arms need to be in slots. So is the solution to go to Home Depot and get some LED retrofit lights that just fit in a plain can without requiring slots to spring tension arms? I did not think it would be this complicated.