Gas discharge lamp for observing Na D lines and investigating of the doublet.Includes a black metal housing with integrated power supply unit, a light aperture with a fine thread for direct screw-mounting of filters and a threaded stand rod.Luminance: 1800 lmOperating current: 0,35 APower: 18 WBase: BY22dService life: ca. 10000 hThreaded light aperture: 40 mm dia.Fine thread for filter: M49Dimensions: approx. 242x153x80 mm3Weight: approx. 2,5 kg
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