These lights are very bright. You need to connect yellow to positive to change the pattern. There are many patterns I like both in lights but they won't keep the last pattern, in other words you set the pattern you like and turn it off and when you turn it back on they should dem follow patterns you set, however they do NOT follow a random pattern of at least 12. I have 3 of them. . Revain does a great job of sending out new ones, but still.
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