[Neweller]

Richard is so right about upgrading stock lighting housings with HID type bulbs with reflectors design for OEM (stock) bulbs. We ran into problems years back marketing bulbs to the automotive industry and had to spend a lot of money doing the proper research & development. A lot of products hit the market and do not meet DOT compliance and thousands if not millions of one product can be sold before the issue is deemed non-compliant.

Jon thanks for adding some additional clarifications as to quality concerns. Design is one thing and effectiveness is another. Know what you are buying! I have a case of great looking conversions that don't work all that well. I have been giving them away to guys to use for their show cars.