Recommendations for RGB garden lights

Having just redone my garden, I’m still missing some lighting. I would like the lights to be RGB types so I can change colour depending on time of the year/ mood.

I like the Philips hue garden lights, but I was hoping for but more economical solution.

I’m looking for standing lights, need to be able to remain always outside (-20 -+40°C) and obviously some way to integrate with openhab…

I used a single Fibaro FGRGBW, or you could use a Shelly, then fan-out cables to multiple lighting enclosures.
Bottom line though is you need to DIY the lights i.e. put roundish LED circuit board in waterproof enclosures.
Or use RGBW strips, there’s some waterproof ones available,