Grandpa's only use water proof large 5050 LED's while some of the competition use smaller LED's to save on cost. Our 3-foot whips contain approximately 300+ LED's and is close to if not more the 70 rows of leds. Unlike our competitors who loosely wrap their LED's (like a candy cane) we closely wrap ours to give you the most LED's per linear foot of whip. This makes our whips the brightest around. Grandpa's whips has the Ultra-Bright leds with BRAKE LIGHT option not like other companies ours also works without having the whips turned on this means you will always have the whips turn on and red every time you hit the brakes. When Purchasing these whips PLEASE unplug your Tail light and make sure you are purchasing the Correct tail light connection if you don't see your Connector please send us a picture and any number you see on your connector.