From Philips Lighting an electromagnetic HID-Basic semi-parallel copper ballast offering a reliable and long-lasting solution for operating CDM, CDO, MH, SON and HPI lamps rated at 100 Watts. This is a Mk4 version featuring improved thermal management, resulting in a cooler ballast, and comes equipped with screw terminal blocks for ease of installation. Further benefits include ThermoSwitch End of Lamp Life protection and minimal watt loss, due to orthocyclic winding. This ballast is for outdoor applications and horticulture lighting solutions and requires an external semi-parallel ignitor (not for SON-I lamps).
for Philips HID-Basic Semi-parallel BSN 100 K302-A2-ITS Ballast