enow.com Web Search

Search results

1. Results from the WOW.Com Content Network

2. Light in school buildings - Wikipedia

   en.wikipedia.org/wiki/Light_in_school_buildings

   Light fixtures currently in use usually provide students and teachers with satisfactory visual performance, i.e., the ability to read a book, have lunch, or play basketball in a gymnasium. However, classroom lighting may also affect students' circadian systems, which may in turn affect test scores, attendance and behavior. [1]

3. High-intensity discharge lamp - Wikipedia

   en.wikipedia.org/wiki/High-intensity_discharge_lamp

   HID lamps are typically used when high levels of light over large areas are required, and when energy efficiency and/or light intensity are desired. These areas include gymnasiums, large public areas, warehouses, movie theatres, football stadiums, [9] outdoor activity areas, roadways, parking lots, and pathways. More recently, HID lamps have ...

4. Metal-halide lamp - Wikipedia

   en.wikipedia.org/wiki/Metal-halide_lamp

   Like other gas-discharge lamps such as the very-similar mercury-vapor lamps, metal-halide lamps produce light by ionizing a mixture of gases in an electric arc.In a metal-halide lamp, the compact arc tube contains a mixture of argon or xenon, mercury, and a variety of metal halides, such as sodium iodide and scandium iodide. [7]

5. High-mast lighting - Wikipedia

   en.wikipedia.org/wiki/High-mast_lighting

   A high mast light in Toronto High-mast lighting tower in a stadium A six-lamp configuration on a mast High-mast lighting used on Ontario Highway 401 at night High-mast lighting used on Ontario Highway 401 during the day High-mast lights in conjunction with shorter lampposts at the Tainan System Interchange (Chinese: 台南系統交流道) in Sinshih District, Tainan, Taiwan A light tower on ...

6. Mains electricity by country - Wikipedia

   en.wikipedia.org/wiki/Mains_electricity_by_country

   Type D mostly historical, nowadays used only for remotely switched lighting and similar. Type M historically used in domestic installations, now only for stage lighting (and there increasingly replaced with Ceeform). Bathrooms may have shaver supply units. United States: A B NEMA 14-30 NEMA 14-50 NEMA 1-15 NEMA 5-15 NEMA 14-30 NEMA 14-50 120 V

7. High-CRI LED lighting - Wikipedia

   en.wikipedia.org/wiki/High-CRI_LED_lighting

   An incandescent light bulb has a CRI of 100. [1] High-CRI LED lighting is a light-emitting diode (LED) lighting source that offers a high color rendering index (CRI). CRI is a quantitative measure of a light's ability to reproduce the colors of objects faithfully in comparison with an ideal or natural light source.