I just got a BOP and am looking to try my first LED conversion. I'm new to pinball ownership and have been doing a lot of reading on LED conversions and thinking of trying my own. I may have missed it but I couldn't locate anything on which angle bulbs to get. I saw the types, brightness, angle (as in which direction it points) but nothing on the way it sends the light out. I've seen some say 90 degree and some over 170 degrees while others say nothing. I'm guess that the 170's are for GI and bumpers and the ones that don't say are for under the playfield but when do you use the 90's?
Lastly, is it worth it to upgrade the backglass to LED bulbs as well? I'm thinking of doing the playfield first and then maybe the backglass.
Sorry if these things have been answered already. I've looked around and couldn't find anything on these topics