Features ofHuNing induction lamp: Long lifetime:Average lifetime 100,000 hours,free maintenance High lumen efficiency:70-90LM/W Effective lumen efficiency:130-150 LM/W High color rending index:Ra80 Hot start:Instant start and re-strike ,excellent hot start performance High power factor:PF0.96 No flick:comfortable light for eyesight protection Optional color tempetatures:2700-6500K Constant wattage output:The lamps output power varies less than 3% when the input voltage fluctuation up to ±20% Self extinguish resistance:The lamp wouldt extinguish when the input voltage drops 40% Strong adaptability:It can designed to operate at the surrounding temperature of -40 Low harmonic distortion:THD8%,meet international standard level L Electromagnetic Compatibility:Operating frequency:200-250KHZ,EMC/EMI meet international standard