White HPS vs Metal Halide?
White HPS vs Metal Halide?
(OP)
I know MH lights are preferred for whiter light, but do any of the newer "white" sodium lights perform decently in color for high-bay lighting? I don't need an absolute perfect color recognition. I mainly need to distinguish red from other colors.
Any general guidelines for cost savings between the two, capital/operating?
Any general guidelines for cost savings between the two, capital/operating?





RE: White HPS vs Metal Halide?
Anything quantitative can be calibrated for the light source, so long as there is red present, which is the case for standard incandescent lights. Lights that depend on gase emission wavelengths will tend to be problematic for quantitative systems.
TTFN
RE: White HPS vs Metal Halide?
There area is basically a large warehouse with waste dumped on the floor. The operators just need to see colors in general, don't need to see if it's teal or just blue/green!
Primary interest is cost savings if the white sodium will work.
RE: White HPS vs Metal Halide?
Any light that purports to have a color temperature 3200 or lower should have plenty of red
TTFN
RE: White HPS vs Metal Halide?
Holophane or other lighting manufacturer should be more than happy to loan you a couple of units to test. At least until you place an order.
RE: White HPS vs Metal Halide?
Keith Cress
Flamin Systems, Inc.- http://www.flaminsystems.com
RE: White HPS vs Metal Halide?
RE: White HPS vs Metal Halide?
However the biggest thing IMHO would be making sure you get electronic ballasts (that are good) as operating cost is where it's at these days and the electronic ballasts are far more efficient and I believe can milk longer lifetimes out of the bulbs to boot.
Keith Cress
Flamin Systems, Inc.- http://www.flaminsystems.com
RE: White HPS vs Metal Halide?