... factor, high brightness efficiency;3, Using the constant current to drive the circuit and having over voltage and current ... Features:1, Direct Replacement of Conventional Fluorescent Tubes.2, Comparing to Conventional Fluorescent Tubes, Saving Electricity > 40% for Comparable ... Radiation, RoHS Compliant.5, Very Long Operational Life (up to 100,000hrs).6, High Lumen Maintenance.7, Vibration and Shock ...