Get COB strips, good ones are essentially dotless.

You'll still have the contrast between the strip and the background, though. You have to hide the strip in a clever way, there are all sorts of hacks and decorative elements out there. However, that's also why all stuff done entirely with LED strips looks kind of cheesy, there's always a visible gradient. Designing it without gradients is the tricky part, and it usually means you need spotlights and other types of sources for the main lighting.

What kind of rooms are you lighting up? I like LED strips enough to use them as a main light source a lot of the time, but if you really want to make a room "pop" you still need floor lamps, recessed lights, hanging, and wall lights to highlight/accent certain things and make a cozy atmosphere for guests.

For longer runs, like along all the undercabinet + above cabinet spaces in a large kitchen, I just run the jumpers as 120V and put the transformer/drivers somewhere hidden at the start of each segment, so if I have 3 segments I prefer to have 3 separate drivers all controlled by the same switch.

Have you tried COB strips? They largely get rid of the need for diffusers if the goal is to simply not see dots. Diffusers are still useful if you want to change the "texture" of the light.

I doubt you learned anything as all your posts are em-dashes LLM outputs about lightning.

Photos?

> Questions for folks who’ve done larger installs (10–50m) or more “production” setups:

> Do you design power delivery first or physical layout first?

I’m not sure I understand the question, power delivery isn’t designed, you calculate how much power you need and then buy an LED driver that outputs enough power.

LED drivers are typically 24W or 96W, so if you use LED tape that needs 2W/ft you can power 12’ with a 24W driver and 48’ with a 96W driver. You can use multiple drivers in a single installation, just keep the 12VDC output cables to the tape light approximately the same length.

> Any favorite diffuser/channel profiles that minimize hotspots without killing too much output?

Deep channel with a regular diffuser, preferably architectural/commercial grade. WAC Lighting makes decent stuff. You can get high output LED tape too, 200 lumens per ft which is 8W per foot, so a 12’ run would be 2400 lumens and 96W.

Cove lighting using LED tape is my favorite, it gives off a nice indirect light but building coves in a ceiling is time consuming.

> For long addressable runs, what’s your go-to strategy for signal conditioning (buffers, differential, etc.)?

I would use a DMX controller with shielded cables and let the equipment handle that.