I've just started my journey into HA and have purchased the Smartthings starter kit which I'm playing around with. So far so good and I plan to play with some Aeotec micro dimmers next.

One thing I'd love to have integrated is lighting in the garden - some lights around the patio, a few up lighters at the base of trees, a few path lights etc

Even better would be to have these (or some of them) as RGB.

Is this possible? Do any product exist? Could I build something myself?