... MOQ,Work quiet Product nameHPS/MH Electronic 600W Ballast with switch XLDS Characteristics1, Size: 260*103*59 mm2, ... Constant output power, prolong the lamp life-span7, Light weight, small size, easy establish, absolute quiet, ... manual / bubble bag, 6 pcs / carton, filled with Foam; As per your requirementApplications Horticulture and Hydroponics Marketplace, ... HPS/MH Electronic 600W Ballast with switch