These are absolutely stunning and very bright. They transition very slowly throughout the snowflake between blue and white. A huge bonus is that they are collapsible for ease of storage. Also, they can plug in, in series with other strung up lights. I didn’t use this option because my end to end strings didn’t line up with the placement of these, but it is an option. Also, be aware the lead in plug and wire isn’t very long, so extension cords are probably the best solution. They are spectacular, and many drive by observers are in awe. I do recommend securing the snowflakes at three points to prevent movement when the wind blows. Hope this helps…Merry Christmas decorating!