I put these on a motorcycle. Very simple to install, jut follow the instructions provided. You can string multiple lights into two different groups, or just one group. Then you can have them flash in sync or randomly from one another. I ordered two and had both of them synced so they would flash the same sequence. They are very bright and I can't believe the price. You simply can't get an LED flashing light with this many flash modes and this brightness at this price anywhere. I will definitely order from here again should I need any more in the future.
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