There is a point at which adding more LEDs to a narrow board stops helping. Push density past roughly 240 per metre on a 12 mm or 15 mm strip and the rows crowd together, heat concentrates along the centreline, and the extra LEDs deliver less light each than the ones they were added to supplement. The way past it is to add width as well as density — which is what the three-row construction here does, spreading 360 LEDs across a 20 mm board rather than squeezing them into 15 mm.
The result is 3100 lumens per metre, roughly 24% more than the 2500 lm/m of the 15 mm double-row model, from 50% more LEDs. That gap between LED count and lumen gain is the honest picture of what happens as density climbs: the additional output is real but not proportional, and the width is what makes it usable rather than just hotter. Where the three-row layout earns its place is not raw lumen count but coverage — 20 mm of emitting width means a shallow cove or a backlit panel is lit edge to edge without the scalloping that a narrow high-density strip leaves behind a diffuser.
Current is 1.17 A per metre at 24 V, and power is 28 W per metre, so this is a strip that wants a proper aluminium channel bonded to a heat-conducting surface rather than adhesive onto a shelf. The cut interval is 50 mm. Mounting clips, a 2P connecting cable, and double-sided tape are supplied with the reel. The 20 mm board is the single most important thing to check before specifying: it will not fit a channel cut for 10 mm, 12 mm, or 15 mm strip. Rated IP20 for indoor dry-location use, with CE, CB, and RoHS certification held by the manufacturer.
Request quotation, datasheet, or free sample length: tel: +86 18933392222 | email: [email protected] — OEM, bulk order, and distributor pricing available.
There is a point at which adding more LEDs to a narrow board stops helping. Push density past roughly 240 per metre on a 12 mm or 15 mm strip and the rows crowd together, heat concentrates along the centreline, and the extra LEDs deliver less light each than the ones they were added to supplement. The way past it is to add width as well as density — which is what the three-row construction here does, spreading 360 LEDs across a 20 mm board rather than squeezing them into 15 mm.
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