the one kit include 2 ballasts and 2 lamps . moreever ,when you buy our factory's HID xenon lamps ,you could enjoy one-year guarantee with nomal use. we have the strong technique,and we promise to supply the high lever quality for clients . and we sure the price is the best competitive. please visit our website : if you are interested in any of our products. do not hesitate to contact us in order to get more details. best regards! E-MAIL:hyyongyuan2007# .cn MSN:skye_52088# PHONE:86-573-6038396