DISCHARGE LAMP AND LIGHTING EQUIPMENT

摘要

16 A discharge lamp comprises a high pressure arc tube for high pressure discharge and a low pressure arc tube for low pressure discharge which is electrically connected in parallel to said high pressure arc tube in an outer bulb. A lighting equipment comprises a high pressure arc tube for high pressure discharge and a low pressure arc tube for low pressure discharge which is electrically connected in parallel to said high pressure arc tube; and a high frequency ballast having 1 kHz to 100 KHz for operating the said high pressure and low pressure arc tubes.