Lamps in wattages from 150 to 400 are available in the MasterColor metal-halide line from Philips Lighting Co. The lamps have a sustained color-rendering index of 92 and are offered in 3000K and 4000K ...

With features including a spherical ceramic arc tube to ensure uniform distribution of light, the 4ArXs HCD ceramic metal halide lamp family has an operating lifetime of over 8,000 hours, making them ...

Philips Lighting recalls metal halide lamps due to the outer bulbs can shatter, resulting in hot internal pieces of glass falling from the lamps, posing a burn and laceration hazard. This recall ...

Here’s how astronauts see us, or at least used to, back when we had astronauts: That’s set to change, at least a bit, as the city rolls out 16,300 ceramic metal halide street lights with the help of ...