... radiation to achive perfect heat dissipation.2,Original pinpoint constant current power supply(national patent 1,Input voltage within AC85V-264V, ... the illuminance mainly keep the same,power keeps constant. 2,Power Efficiency ≥85%,Power Factor≥0.92, THD≤20%. 3,Work ... illuminance mainly keep the same, 4,Intelligent power supply design,avoiding electric current's direct impact to LED chips,protect ...