This is probably a 5 star product for a new installation (but too low a color rating). But since they don't offer retrofit mounting clips like other brands, I'm evaluating this for my use case (sorry guys). Also I've been eyeing a lot of 2.7, 3, 3.5, 4, 5 and 6k tubes lately and although this one is listed as 4k it looks more like 5k to me. The image is quite soft compared to the existing one, so 3.5k highlights.