lights are for under eave. i found one that is rectangular with 150watt halogen bulb, the type of bulb you often use in a worklight. this is lithonia lighting OFTM 150Q 120 LP WH. on their website it says it puts out 2400 lumens. the par38 holds up to 150 watt. I only found 120 watt (halogen) and it puts out 1800 lumens. based on lifespans listed, the bulbs cost about the same. any advantages/disadvantages to using one over the other? big issue is will both of these types of bulbs be available in few years?? one disadvantage to the rectangular is that you have to loosen screw to open the cover to change bulb. trying to do that while hanging out my window may be a little hard. screwing and unscrwing a par38 is much easier. but looks like it puts out a good bit less lumens.

Are different brand/model housings and trims interchangeable to some degree? I am asking because I am installing Halo H7T housings all over and have not purchased any trims yet. Today I saw an ad that someone was going to remodel a restaurant and the project went south (restaurant did not open), and he got stuck with 150 trims that he paid $12 each for. Those are Juno 34WL 6" white baffle trims. He is selling those for $6 a box of 12, which amounts to 50 cents a piece. I thought it may be worth it to try to see if Juno 34WL trim might work on Halo H7T housing. Will it work? Another related question. What about those generic trims that claims to work with "most 6" trim - Halo, Juno etc..." anyone has experience with those? Are those viable options or ill fitting at best? Thanks for any comments.