... ,000h or 20,000h;- Surface Mounted Installed;- Protection Class II;Ballast Available:- Voltage Choice Available:220-240V, 50/60Hz110-120V, 50 ... /60Hz90-260V, 50/60Hz- Ballast Parameters Available:Normal High Standard Ballast, PF≥0.95, THD≤30%, Life = 15 ... ,000 hours, Pass EMC and LVD Testing;Normal Low Standard Ballast, PF≥0.55, THD≤130%, Life = 15,000hours, Pass ...