My contractor installed Juno TCR1 housings for me for an area over a shelf. I bought Juno 440 trim and 16 PAR bulbs as instructed. NO instructions came with the trim and I cannot for the life of me figure out how the bulb connects to the trim. It looks like the bulb has a ridge on it and the trim has a spring mechanism holding a piece of glass, I have tried numerous times to see if the bulb fits on top of the glass but cannot get it to. Help!