Model: NL-ST30Base type: E40 ScreenInput voltage: AC100~260VLED consumption: 28WLuminous Flux: 2520LmIllumination:(Height=6 m ) ≥12 Lux (instead of Sodium light 31Lux) (Height=8 m ) ≥6.5Lux (instead of Sodium light 17Lux) (Height=10 m )≥3.5Lux (instead of Sodium light 9Lux) (Height=12 m )≥2 Lux (instead of Sodium light 5.5Lux) Color Temperature: Natural White/ 5,000 ~ 7,000 K, Warm White/ 3,000 ~4,500K Working Ambiance Humidity: 10 % ~ 95 % RH Working Temperature: -30~40 CelsiusLamp's Efficiency ( %) >90 % Lamp Housing Material: Aluminum alloy and PCLife Span of LEDs > 50,000 HrsNet Weight: 1 kg Lamp Size: H:290mm Φ:104mm