COB vs SMD LED Strip Lights

SMD and COB describe how the LEDs are built on the strip. SMD strips use individual LEDs you can see as dots. COB strips pack LEDs so tightly that the light looks like a continuous line. See our COB LED strip lights guide for products.

The Short Version

Choose COB if the strip will be visible and you want a smooth line with no dots. Choose SMD for RGB color, wide choice, and lower cost.

Side by Side

Factor	SMD	COB
Look	Visible LED dots, especially close up	Continuous line, no dots
Density	Typical listings: 300 to 600 LEDs per 16.4 ft	Typical listings: 320 to 480 LEDs per meter, some higher
Color	Wide RGB and RGBIC range	Mostly white and warm white; a few RGB models
Cost	Usually lower	Often higher
Best for	Room accents, color decor	Cabinets, shelves, covered coves, mirrors

Notes From Listings

• COB listings highlight a 180 degree beam and CRI 90 or 93 or higher
• SMD 2835 strips list 300 or 600 LEDs for a 16.4 ft roll
• Both come in 12V and 24V; check the supply

Which Should You Choose?

• Exposed strip under a shelf or cabinet: COB
• Behind a TV or headboard with indirect light: SMD is fine
• Color effects or music sync: SMD RGB or RGBIC
• Budget room accents: SMD

Who Should Look Elsewhere

• Want color effects or music sync? SMD or RGBIC strips are the better tool; see RGB LED strip lights.
• Need a very low-cost accent strip? SMD kits are cheaper; see strips under $10.

Frequently Asked Questions

Is COB brighter than SMD?

Brightness depends on wattage and density. Compare the lumen and wattage figures in the listings.

Can I cut COB strips?

Yes at the marked points, which are often every 50 mm.

Do I need a diffuser?

COB strips already look smooth, but one listing suggests an aluminum channel for the cleanest line.

Safety note: low-voltage LED strips are safer to handle than mains wiring, but their power supplies plug into household power. Use the supply in your kit or one that matches the strip’s voltage and wattage, keep it dry, and follow the manual. Anything that connects to a household circuit should be done by a licensed electrician.

Related: warm white LED strips and 12V vs 24V.

Check current pricing and availability for the PAUTIX 24V COB Warm White Strip.

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