... Input:AC120/240V 50/60HZ Guarantee period: 2 years CE,EMC,ROHS,UL 1500w Electronic Ballast for Grow light ... of Quality Assurance.- For 5 years Experience in Electronic Ballast Field. (Our Factory owns advanced production equipment and experienced ... Lamp distance from ballast>10mEnvironmentOutdoorInternal fanNO5>Advantages:1:Smaller size, lighter weight, 30% lighter than the magnetic ballast2:Wide input ...