I've used martha stewarts xmas tree LED lights to clone. Took a strand of soft white and a strand of cool white. Drilled a million holes in a (white) bucket lid and alternated the spectrum. It blended almost perfectly. I took it apart to re-fit it into a new lid, but after marking the holes in the new lid, i never got around to drilling the new holes.... It's a cool trick, It works, I had to find out for myself as well. I found it better to just take a red one (soft white) and a blue one (cool white(6kkelvin) and align them into the cardboard/panel in alternation. Blends the colors together.