This HID-Basic semi-parallel copper ballast from Philips Lighting is a dependable choice for use with CDM, CDO, MH, SON and HPI TS-R lamps rated at 250 Watts. It is an impregnated, electromagnetic Mk4 ballast with improved thermal management features, resulting in a cooler ballast and it comes equipped with screw terminal blocks for ease of installation. It also benefits from End of Lamp Life protection and minimal watt losses. This ballast is for outdoor applications and horticulture lighting solutions.
for Philips HID-Basic Semi-parallel BSN 250 K202-A2-TS-R Ballast