Star Shower comes in Red and Green, in tone with the holiday spirit. Pressing the switch towards the Green stripe will emit only green laser light. Pressing the switch towards the Green and Red stripe will emit both colors.
The green color shows up the best, red is much less visible, especially on darker backgrounds. Green is definitely the best for longer views.
The projector can also shine blue, but those dots are hard to see unless you put the light closer to the wall or tree.
For more info check out our Ultimate Guide to Laser Xmas Lights – http://laserchristmaslightshq.com/ultimate-guide-christmas-laser-lights/
Or our Holiday Projector Guide explaining the five highest quality and most affordable projectors on the market – http://laserchristmaslightshq.com/best-laser-light-projectors/