The thing nobody tells you first

The strip does not dim. The driver does.

A 24V COB strip is a passive load — copper, LEDs, phosphor. It has no electronics in it. So when someone says "is this strip dimmable", the honest answer is: the strip will happily run at any level you feed it, but something upstream has to do the dimming.

That something is the driver. Which means the only question that matters is what driver did you buy.

Route 1: a wall dimmer

You need two things, and people usually only buy one:

1. A dimmable 24V constant-voltage driver. A standard CV driver is not dimmable. Putting a dimmer in front of a non-dimmable driver does nothing at best, and kills the driver at worst.
2. A compatible wall dimmer.

Trailing-edge, not leading-edge

This is the detail that causes most post-renovation complaints in Singapore.

Leading-edge dimmers were designed for incandescent and halogen loads. They work poorly with the switching supplies inside LED drivers. If your cove flickers at low brightness, or hums, this is almost always why.

Ask your electrician which type is already on the wall before you buy a driver. If the dimmer is already installed and it is leading-edge, you have two choices: change the dimmer, or accept the flicker.

Route 2: a controller between driver and strip

If you want app or voice control, put a 24V constant-voltage controller between the driver and the strip.

Mains → driver → controller → strip.

Tuya, Aqara, or any comparable brand will work. The strip does not care whose controller it is — it is a passive load. Three things to check:

• Wattage rating. The controller must be rated above your total load. A 10m run at 12W/m is 120W; do not put a 60W controller in front of it.
• PWM frequency. Cheap controllers dim by low-frequency PWM, which strobes visibly on a phone camera and gives some people headaches. Look for a high PWM frequency — above 1kHz, ideally well above.
• The driver stays a plain CV driver. With this route you do not want a dimmable driver — the controller does the dimming downstream. Two dimming stages fight each other.

Where KAYVA stands on this

We do not make smart products. Apps, hubs and firmware are extra points of failure, and we would rather sell you something that still works when the WiFi is down and the app has been discontinued.

But we are not going to pretend the option does not exist. The 480 Pro Strip will run happily behind any quality 24V CV controller. If that is what you want, do it — just buy the controller on its specs, not its app.

Common failures

• Flicker at low brightness → leading-edge dimmer, or a low-frequency PWM controller.
• Buzzing → dimmer and driver mismatch. Almost always leading-edge on a CV driver.
• Dimmer does nothing → the driver is not dimmable.
• Works, then dies in a year → driver or controller undersized, running at 100% load, sealed in a ceiling with no ventilation.
• One end dimmer than the other → not a dimming problem. Voltage drop. Feed the run from both ends.

Sizing

Whatever route you take, size for load + 20%. The 480 Pro Strip draws 12W per metre.

Use the calculator. And note: LED drivers are Controlled Goods in Singapore and require a SAFETY Mark. The unbranded driver on a marketplace is not cheaper — it is not legal to supply here.

Mains connection by a licensed electrician. The 24V side is safe to handle unpowered.