Price: Parameter: Material: Aluminum AlloyLED: Luminus SST20 LED with DTP copper plateCRI: Ra(4000K/2700K)=95, Ra(6500K/5000K)=70Driver: 7135 biscotti firmwareLow voltage warning: YesReverse polarity protection: YesLens type: Ar-coated GlassReflector: SmoothMode memory: YesTailstand: YesRequired