First no 6" cans all you need are 4" the glare comes from the cover over the bulb or the bulb itself IMO 2700K is too yellow of a cast and I use LED 4000K in my whole home and do not experience glasre unless I am looking directly at the bulbs Maybe the issue is you have grown used to in candecsent lighting which is very much different than LED I suggest you do 4" pots with 3500K bulbs and live with them for about a week to get used to tatally fifferent type of light. BTW tell you electrician to find somewhere else to pawn off all his 6 " cans. It also helps to have the bulbs abit deeper in the socket

Perception of lighting will be different for everyone.

We went with 3500K and high lumens for all our lighting. All with dimmers. The recessed light are more for cleaning and other tasks, but most of the time we use our pendants, chandeliers and table lamps.

We didn't like the basic/cheap recessed lights that our electrician wanted to install, so we had the lighting store recommend a better product rated for high-end residential or light-commercial. The product we used was from https://elcolighting.com/. We did have to wait 4 weeks to get the lights, so plan accordingly. It delayed our project, because the electrician only showed us the cheap stuff he planned on using right before he was supposed to start.

Thanks for the insight. Do you have a brand with a deep socket?

Thank you chispa! I am checking out elcolighting now.

Beware of people who tell you there is only one way to do, or design, something!

With 10 to 12 ft ceilings we used a mix of 4" and 6" cans. We had 2 people from the lighting store we used come out and walk the house with us and they suggested we change from 4" to 6" in some of the rooms with 12 ft ceilings.

I'd go with 3500K with a 90+ color rendering index. The dimmers should help with glare.

Halo and others make 4” and 6” can lights with the bulb recessed above a baffle. The recess and baffle help prevent the light bomb effect that happens when the bulb is at ceiling level. Our recessed bulb can lights have about a 6” baffle to the bulb sits above the ceiling. Unless I look directly up at the can, I don’t see the bulb cover.

No to 6 inch recessed! They're like flying saucers in the ceiling

I love Torchstar 4 inch - they look like a three inch IN the ceiling, there's no glare.

Recessed lights can be considered both ambient.or task lighting depending location and height.

Lighting ANY room is best thought of in layers. Not all of it should come from one source, and not all of it from the ceiling. Think low, medium, high - and ambient, generally lit, versus task and warmer mid level pools of light. A combination enhance use and decoration. As does the use of dimmers.

You mean you will be choosing a lumenaire of 700lm/9W, or 900lm/11W, or 1100lm/15W? Each of which will have a selectable CCT of 2700K, 3500K, 4000K, or 5000K?

The glare, as described by Otto, is when there is no or little "recess" between the ceiling plane and the lens (or 'bulb' if Edison socket). So when standing across the room your eye is drawn to the light like a moth or you see the hotspot in your peripheral vision.

Most integral LED (new construction, remodel, or retrofit) fixtures do not have a "recess" deeper than say 1" unless you get into commercial light engines. With Edison socket trims like the Juno wdcruise listed you have more opportunity for deeper "recesses," and tricks like baffle color can help minimize glare if it fits your decor. Or going to smaller sizes like the 2" listed can also minimize (because will be less lumens) but those sizes would be for specific lighting situations and goals.

I only like the quality of the light I can get from a downlight that will take a PAR bulb whether that PAR bulb is LED or Halogen. IMO it would be foolish to purchase fixtures where the bulbs cannot be changed out to control the mood of the room.

Those downlights do not require a transformer to step down the voltage. They are two parts. The housing and the reflector can be selected per your preference.

https://www.homedepot.com/p/HALO-H7-6-in-Aluminum-Recessed-Lighting-Housing-for-New-Construction-Ceiling-Insulation-Contact-6-Pack-H7ICT-6-PK/203891884

This allows you to spec the housing now and take your time selecting the type of reflectors required for different rooms.

Reflector Options.

I don't see anything wrong with 6" cans provided the room is spacious in volume. I have found that 4" cans are appropriate for 8' ceilings. The proper selection gets trickier for a 10 ft. ceiling. Depends on the spacing. You don't want to end up with a ceiling that looks like Swiss cheese.