ConstantColor™ CMH Elliptical Diffuse

ConstantColor™ CMH lamps combine the HPS technology (providing stability, efficiency & uniformity) and the Metal Halide Technology (providing bright white quality light) to produce highly efficient light sources with good colour rendering and consistent colour performance through life. This is achieved by using the ceramic arc tube material from the Lucalox™ lamp, which minimises the chemical changes inside the lamp through life. When combined with the halide doses used in Arcstream™ Metal Halide lamps then the quality and stability of the dose maintains the colour consistency. Hence the name ConstantColor™ CMH.
Metal halide lamps, traditionally made with quartz arc tubes, are prone to colour shift through life and lampto-lamp colour variation. Some of the dose, e.g. sodium, (an important component of metal halide lamps), can migrate through quartz to cause colour shift and loss of light through life. The ceramic arc tube resists this material loss, can be manufactured to tighter tolerances and withstands a higher temperature to provide a more constant colour.


Product code Description Wattage
Lumen [lm] Base
72656 43282 CMH70/E/UVC/O/U/940/E27/D 1/6 70 5900 E27
99656 97979 CMH70/E/UVC/U/830/E27/D MIH 70 6000 E27
6908 43286 CMH150/E/UVC/O/U/940/E27/D 1/6 150 12300 E27
73143 10591 CMH250/E/U/830/E40 250 23500 E40
6911 13087 CMH400/E/UVC/U/830/E40 400 39000 E40