Requiring an external semi-parallel ignitor this HID-Basic copper ballast from Philips Lighting is a proven solution for operating CDM, CDO, MH, SON and HPI lamps rated at 70 Watts. This Mk4 impregnated, electromagnetic ballast offers improved thermal management resulting in a cooler ballast and comes equipped with screw terminal blocks for ease of installation. Featuring End of Lamp Life protection as standard it also boasts minimal watt loss. This ballast is for outdoor applications and horticulture lighting solutions.
for Philips HID-Basic Semi-parallel BSN 70 K302-A2-ITS Ballast