How to choose a suitable COB light strip

2026-01-16 55

1、 Bottom plate quality: determines the lifespan of the LED strip


Double sided electroplated board: Copper content ≥ 2.5, fast heat dissipation, strong conductivity, suitable for long-term use (such as commercial lighting).


Die cutting board: thin and soft, prone to damage of lamp beads due to device folding, with a short lifespan, only suitable for temporary or low-frequency application scenarios.


Key point: Prioritize choosing double-sided electroplated boards to prevent lamp beads from falling off or light decay from accelerating due to deformation of the bottom plate.


2、 Lamp bead function: affects brightness and uniformity


Color rendering index (Ra):


Ra ≥ 90: Restoring the actual color of the object, suitable for scenes with high color requirements such as clothing stores and galleries.


Ra80-89: Good functionality and low price, satisfying home lighting needs.


Full spectrum COB strip: Ra ≥ 97, close to natural light, suitable for children's rooms or reading areas.


Lamp bead density:


420 beads/meter: Good continuity of lights, no graininess, suitable for decoration or even lighting.


320 LED beads per meter: Low cost, suitable for basic lighting or short interval use.


Sealing process:


Solid color adhesive arc planning: soft light, no flicker.


Flat adhesive material: has a large luminescent surface, low luminous efficiency, and is prone to exposing lamp bead particles.


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3、 Supply voltage: matching device interval


12V COB LED strip:


Applicable scenarios: Short intervals (<5 meters="">


Advantages: Low voltage, suitable for families or car use with children.


Downwind: High current, easy to generate heat over long intervals, and rapid light decay.


24V COB light strip:


Applicable scenarios: Long intervals (>5 meters), such as commercial lighting and engineering lighting.


Advantages: Low current, low heat generation, slow light decay, and higher energy efficiency.


Attention: Both ends need to be connected to reduce voltage drop.


Article source: Zhongshan COB LED strip manufacturer www.citylightcob.com