Lighting · 3 min · reviewed Oct 2026
COB vs SMD LED: what's the difference?
Short answer
A COB (chip-on-board) LED packs many LED chips into one small light-emitting surface, giving a single, focused beam with one clean shadow — ideal for downlights, spotlights and accent lighting. SMD (surface-mounted device) LEDs are individual packages spread across a board, giving wide, even light — ideal for bulbs, panels, battens and strip lights.
हिंदी में
COB और SMD LED में क्या फर्क है?
COB में कई LED चिप एक ही जगह लगी होती हैं — एक फोकस्ड बीम मिलती है, जो स्पॉट और डाउनलाइट के लिए अच्छी है। SMD में अलग-अलग LED फैली होती हैं — पूरे कमरे में एक जैसी रोशनी, जो बल्ब, पैनल और बैटन के लिए अच्छी है।
Neither is simply better. Choose COB where you want to aim light at something — art, a shelf, a feature wall — and SMD where you want a room evenly lit.
Questions people also ask
- Are COB lights brighter than SMD? +
- Not by type alone. Brightness depends on the lumen output of the specific product. COB looks more intense because the light comes from a smaller area.
- Which is better for a false ceiling? +
- Use SMD panels for general light and COB downlights for accents. Most good ceilings use both.
General guidance only — follow IS 732 and your local electrical rules, and use a licensed electrician.
