There's no CR5. The BR30 LED floodlamps that are available all have some issue (poor color rendering, slow startup, not wide enough beam, or too expensive). But lots of retrofits I run into need 5" modules (with built-in trim) or BR30s if you keep the existing trim bezel. The Home Depot 5/6" modules made by Halo IIRC aren't too bad, but I'd prefer 2700K rather than 3000k, better color rendering, and a deeper, less glaring lamp. The excellent Cree modules are 4" or 6" only, and their LBR-30 50-degree floodlamp bulb is 2700K and has great color (94 CRI) but is expensive and wider than PAR30 bulbs normally are and don't always fit, and only dim to 20%.

Is there a good 5" recessed LED out there?