GE 20153 39 Watt T4.5 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 color rendering
and consistent color performance through life. This is
achieved by using the ceramic arc tube material from the
Lucalox™ lamp, which minimizes the chemical changes
inside the lamp through life.