... No MOQ,Work quiet Product nameHPS/MH Electronic 600W Ballast with switch XLDS Characteristics1, Size: 260*103 ... Constant output power, prolong the lamp life-span7, Light weight, small size, easy establish, absolute quiet, ... Production lead time: 25 working days3, Packing: 1 pc ballast + manual / bubble bag, 6 pcs / carton, filled ... Lamps, Public Lighting HPS/MH Electronic 600W Ballast with switch