12v dc led strip dimming

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Can any 12v dc led strip be dimmed
Yes with one caveat here, the 12v strip has to have resistors for current limiting not solid state drivers (most do use resistors). Dimming is easy, just a PWM controller will do it reliably, make one easily with a 555, mosfet, pot and a capacitor (look on Youtube).
If it's a small job, such as a display cabinet and you want a fixed level just put a resistor in series. Just done that for one of my display cabinets. The power waste is minimal.