SMD

Black PCB LED strip hides in a dark ceiling only if the channel, cover, end caps and leads are dark too. What the board changes, cover choice, and the build.

Turn LEDs per foot into pitch, check it against diffuser depth, and see how density sets cut increments, dark stubs, watts and heat on SMD and COB strip.

How deep a backlit onyx, stone or acrylic panel must be for an even glow: vendor depth figures, a watts-per-square-foot formula, COB choice, heat, access.

2835 for white, 5050 for color, 2216 for a dense line on a narrow board. What the package numbers mean, how they compare and which to spec for each job.

Side-emitting strip lights from its edge, S-bend turns flat around curves, ultra-narrow fits 3 to 5 mm slots. What each gives up and where each belongs.

Pick CRI 90, 95 or 98 LED strip by what it lights. Check R9 and TM-30, weigh the efficacy cost with real models, and settle the tier on a sample board.

Spec COB where anyone can see the strip or its reflection, SMD where the cove hides it. Compare efficacy, CRI and run length with real models, plus other uses.