3528 Color temperature adjustable led strip,2 chips in one 3528 led,DC12V or DC24V input voltage,60 led/m or 120led/m, with Cool White(6000-6500k) and Warm White(2800-3200K) in one 3528 SMD LED, We use the newest led as light source, the new led use special production techniques, which adopt single led with double chips White and warm white as light source, Dual white in one LED to keep the color more uniform.