these are the pro series, they are super bright but are only in clear. You can get other strobes that are different colors but they are not as bright. The pro series have 12 different programs to alter the flash sequence...you can do almost anything you want with them..plus the little controller that goes on your dash has 4 red leds to signify the four corners of your car, they flash with your lights so you know exactly what pattern you are running. They are also controlled via the dash mounted controller or via a remote control that attaches to your keychain.