... -saving, Timing Dimmable No MOQ,Work quiet Product nameHPS/MH Electronic 600W Ballast with switch XLDS Characteristics1, Size: 260*103*59 ... range4, Energy-saving up to 15%-45%5, Open circuit protection, short circuit protection and overload protection,Ignition failure protection, low voltage ... Plaza, Theater Highway Tunnel Street Lamps, Public Lighting HPS/MH Electronic 600W Ballast with switch