These came off my car which were on for about 4 years without a problem. They are McCulloch ballasts with 4 D2S H4 bulbs. 2 of the bulbs are brand new, never used. I bought them as a backup in case any bulbs blew but none did in the 4+ yrs so you get all 4 bulbs. The bulbs are rated at 6000K and sell for about $50 each on ebay. It's a plug and play kit so that means, it'll take you 15 mins to install. No drilling or cutting required. Asking $250 for the entire kit. I am selling because my new car will come with factory HIDs