Manufacturers originally designed double-ended high-pressure sodium light bulbs so they would be compatible with double-ended metal halide fixtures. Traditional single-ended high-pressure sodium bulbs ...

When consumers visit garden centers in spring they will most likely buy flowering plants that are ready for their home gardens. To satisfy consumers' wishes, producers start growing crops far in ...

To continue reading this content, please enable JavaScript in your browser settings and refresh this page. Think back to mixing primary-color paint in grade school ...

More than 105 million high-intensity discharge (HID) lamps, ranging from 20W to 2,000W in size, are now in use in a broad range of interior and exterior applications in the United States. HID lighting ...

Bedding plant seedlings were grown at 21C under ambient solar light and supplemental lighting from either high-pressure sodium lamps or LED arrays with varying proportions of red:blue light. Seedling ...

The current price for 8-meter LED street lamps is three times higher than comparable high pressure sodium lamps, which are priced at NT$6,000 (US$186), but the total cost of high pressure sodium lamp ...

Dhaka City Corporation (DCC) and Roads and Highways Department have replaced the existing low-pressure sodium lights with high-pressure ones in a bid to enhance the visibility of the traffic at night.

There’s a new LED module on the block, the Bridgelux Outdoor Lighting Module (OLM) that reduces manufacturing cost of outdoor solid state lighting fixtures by 20% to 20% while lowering power ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. As knowledge of materials and ...

Think back to mixing primary-color paint in grade school. Remember how mixing in yellow changes white, blue and red? Lighting is no exception. A problem too often overlooked is how the yellow-tinted ...