With single button, you are able to control the snow falling speed or make the fairy white snow dots spot at your house.

This projector also comes with a security lock to deter thieves; a lockable cable runs from the projector to a secure object, such as a fence. As a rule of thumb, images like snowmen and holiday ephemera will look best when projected onto a flat surface, whereas lasers or large-area solid colors will give you a little more flexibility (but not much — your best option is still a flat surface). From there, it’s a matter of adjusting the projector angle, securing it, and plugging in an extension cord. All the patterns are in red, green, and blue, but we were able to turn each of those colors on or off from buttons on the remote control.IP rating: IP stands for ingress protection, and it's a measure of the protection an electronic device has from outside particles and fluids entering its system. We recommend units that have an automatic shutoff in bright conditions, saving you the hassle and energy bill of forgetting to turn it off. Another caveat of using this projector at a lengthy distance: the remote control only works from 30 feet away–which we confirmed in our testing.

Good Housekeeping participates in various affiliate marketing programs, which means we may get paid commissions on editorially chosen products purchased through our links to retailer sites. This Christmas projection light can illuminate the entire bedroom wall with just one projection light. Among the most advanced models are the correlations of Haider and Levenspiel ( 1989), Ganser ( 1993) and Hölzer and Sommerfeld ( 2008).

For users planning to project the lights onto trees, we confirmed that the larger and thicker-than-average ground stake is quite strong for staking into a tree-filled area that may have roots close to the ground’s surface. Although everything about this projector worked well in our testing, some users have reported that the red laser stopped working in their unit.