Heraeus Q4137 Z1 - MHL-4010 Graphic Arts Light Bulb - Description - Metal Halide - Watts 4000W - Volts 280V - Spectral Range 400-450nm - Process Diazo - MOL (A) 200mm - Arc Length (B) 104mm - Diameter (C) 30mm - Lead Wire Length 155mm - Base Ceramic - Contact AMP Connector Heraeus Q4137 Z1 - MHL-4010 Graphic Arts Light Bulb