Yes, billions! These are easy to pull when small, I'm sure you'll get to recognize them well.

The newer CR6 modules can fit into several 5" cans now - see Cree's spec sheet which now states it will fit "most 6â and some 5â recessed housings". And as it turns out, I just installed some CR6's in 5" cans (unknown manufacturer, but they were IC new construction housings whose openings were exactly 5" diameter). Some "5 inch" housings actually have even larger diameters - the H550ICAT linked to above is 5-1/2" diameter, although I've never tried it with those. Still, I wish Cree would offer a TrueWhite (90+ CRI) floodlamp in BR30/PAR30 and BR40/PAR38 sizes with just the bulb, without an integral trim baffle, which would ease installation and reduce cost for retrofits where you already have a trim bezel. For new construction, having a built-in trim kit is more cost-effective since it eliminates the need to buy that part separately which saves $10-$15 per lamp, making the TrueWhite CR6 (a.k.a. EcoSmart ECO-575L) competitive in price with the BR30 floodlamp bulbs from Cree or Lighting Science (also sold at HD as an EcoSmart), both of which currently are $20 but are about 80 CRI and the difference is obvious in light quality in back-to-back comparisons - of those three only the ECO-575L gives off light that looks as good (almost) as an incandescent or halogen light bulb. Recent versions of that lamp module, dispite the same designation, are rated at 625 lumens.

Saline is chlorine. Where you are located may be relevant. Some pools are better behaved using tabs, some with salt. Construction materials are important here. Scott

Thanks so much. The roofers also drove in nails that have come through my drywall in the shaft under the skylight. The roofing guy just came by. He said they had put up wood frames around the skylights, and when hammering, the nails--that he said were already there--must have been driven down into the drywall. This sounds odd to me. But they said they'd get a drywall guy to fix it, so I guess it's fine.