Crg
In the case of speciality types of consumer bulbs you're going to have to go to a lighting speciality retail store. The G8's are common for puck lights but the special spectrum bulbs are somewhat controlled so people don't order and install them by mistake.
I ordered a set of puck lights online. They are really well made, not like the ones you get at HD or Lowe's. It said they came with warm Xenon. Not true at all. It looked like I had a row of old time blue tinted fluorescent lights under my cabinets. I hated them.
Some of them have different heat characteristics making them possibly dangerous for certain applications and puck lights.
The 2600K bulbs should be cooler and no problem but Lowes is not likely to carry them.
Yeah, Lowe's has them, that's where I got them.
Here's a link. They look great. They don't have a very good rating, but none of them do. These kind of bulbs only last a few months, a lot longer if you use a dimmer though.
I found them by reverse lookup so to speak. I couldn't find anything out there that stated 'G8 26/2700K'. I happened to be looking at ceiling fans there one day and noticed they had puck lights that cast the exact light I was looking for. It took G8's, so I looked around the isle until I found the replacement bulbs. The guy there said those bulbs fly off the shelf. He said they've gone through 35 packs in the last 2 weeks and he had more on order. There's another Lowe's up the road and they had them.
These bulbs have that incandescent glow that I like. I don't like LED, bright white, cool white, etc. lighting.
I got the lights wired, I just have to tie them in to the outlets and put in dimmers. Not an easy task though since there's only a single gang box. I have to fish wiring, cut sheetrock, put new boxes in. All before this weekend. We're finishing up the remodel and the backsplash tile will be here on Friday. We're doing the tile work and we have to get it done this weekend before Thanksgiving. Actually, my wife is doing the tile work. She's really good at it. I just cut the tile and hand her what she needs.
My wife said I was crazy for making such a fuss over the light the bulbs put out until we finally got them up. The original ones completely changed the color of our new countertops and made them look horrible. That's when I got the 'ok' to get the correct lights. ;)