Hi All,

I've been reading this forum for a while and decided to join to ask some questions about my kitchen LED lighting setup.

I have bought a 24v 4k COB LED strip a 24V dimmable driver and a touch control that acts as on/off and dimmer. But I am confused if my setup is ideal or not. The wiring is as follows AC -> on/off wall switch -> driver -> touch control -> LED strip.

1. I understand the different types of dimming (1-10, Triac, PWM) but I don't understand if in my case I really need, or should avoid using, this expensive dimmable driver, it seems that its dimming functions are not used. Is my setup using PWM? Is there any advantage to PWM dimming compared to 1-10? I know PWM in laptop screens might not be good for photosensitive people.

2. I don't understand all the inputs/outputs of this driver, here's a picture .

What is CL in the input ? And what are in the output PV d+ and d- and NC?

3. For a similar setup but with a COB CCT strip using a controller such as this one https://fr.aliexpress.com/item/1005003059393204.html?gatewayAdapt=glo2fra do I need a dimmable driver? I just don't understand why they have a 4 pin connector when CCT led only have 3 wires.

From my understanding it seems that a dimmable driver is not needed unless you use AC dimming or one of those wireless 1-10v dimming.

I would appreciate any help with this as I find it very confusing! thank you

 

2. I don't understand all the inputs/outputs of this driver...

That's where you need to focus. If you can't get any technical information on that device, send it back and get a different one. Otherwise you're risking damage to your LEDs, to that device, maybe even to yourself or your home. It's not worth your time and effort.

 

About the "need" for dimming: The only application for dimming control is when full brightness is not what you want. In a storage area full bright is fine so that visibility is maximum. In a sleeping area, a much dimmer light will be suitable. On a factory production floor full brightness because that is not the place for sleeping.

 

About the "need" for dimming: The only application for dimming control is when full brightness is not what you want. In a storage area full bright is fine so that visibility is maximum. In a sleeping area, a much dimmer light will be suitable. On a factory production floor full brightness because that is not the place for sleeping.

What I meant when I asked about dimming was if a dimmable driver is needed when there is a PWM dimming controller. Not if I need to dim in my kitchen

 

OK, it was not clear to me about a separate controller and driver. I have seen separates described for large commercial lighting projects, usually with one controller providing a signal for several LED driver packages. What will provide the information is the output connections. If the controller has a zero to ten volt "control" output, then you also need an LED driver. But if the controller has an LEDs output, with some voltage and current capabilities description, then it does not require a separate driver. But it might require a separate power supply.