250W Dimming electronic ballast (175V-260V) for HP

250W Dimming electronic ballast (175V-260V) for HPS/MH •Input voltage:175V-260V •Input power:265W •HIghsystem efficiency:>92% •High power factor:>0.99 •Low total harmonic distortion:THD<8% •Current crese factor:<1.5 •Long life-time:>20000 hours •Energy saving rate:>40% •Out short protection:available •Open circuit protection:available •Lgnition failure protection:available •Thermal protection:available •Dimming function: A.auto dimming B.3-4 steps dimming C.0-10Vdimming •Dimension:190×114×75.5(mm) •Operation temperature:-25°c-+55°c •EMC:NE55015 •Small size, light weight, easily-installed