UK white LED strip advice

I am now on my second rgbw amazon controler for kitchen cabinet lighting, the latest one no longer gives much brightness for whatever reason, the leds attached are a mix of white over the top of the units and rgbw underneath , maybe the psu is dying I don’t really know

So I am looking for something reliable, bright white or tuneable white, no colours, wifi with St integration or zwave zigbee, I’m not looking to spend a fortune

Don’t care if they are seperates or a kit

Any advice please as most stuff I see on amazon is rgbw, in reality we only want work lighting not party time

Maybe just a reliable dumb set that is tuneable i can easily add a smartplug for on off control

I had previously that experience with dumb strips. After a while they started to output less and less light.