These are great lights I replaced mine a little brighter then the old ones just bought more.
Could one of these be safely Left on a floor to uplight a piece of artwork from behind a piece of furniture which it would not be touching?
LED lights like this will get warm but not hot. Should be fine. I laid one across a bed of blown cellulose insulation in the attic for 6 hours while I blew insulation – it was 124F up there. It was warm to the touch but otherwise fine