55W HID kits do produce slightly more light (approximately 15%-20%) than a 35W HID Kit. This increased light output usually results in a less even light spread and additional glare. 55W ballasts are not as efficient as 35W ballasts meaning that 55W ballast longevity will be compromised. Many merchants that sell 55W HID claim that 55W is a superior technology. However, there is a reason that all cars that come with HID lights from the factory still use 35W technology and not 55W technology
