Yes you have to use ballasts but it is all plug and play. No splicing at all and a blind monkey can install them. Absolutely no mechanical or electrical experience is needed to install them. Look up the name ARMADEN on this forum. He is the man when it comes to HIDs and LEDs. Cheap prices and awesome customer service. If you dont want HIDs than the Sylvannia Ultra Stars are good also. they burn out quicker than regular bulbs since they burn so much hotter and brighter. They cost almost the same as a HID kit from Armaden but the HIDs have way more light output than the Sylvannias.For the HID's don't you have to run some extra wiring or ballast?