Crops, of course, have always relied on three things from nature: soil, water, and sunlight. If executives at AeroFarms have their way, though, the future of crop growing will be mesh cloth, small amounts of water, and LED lights.
Regardless of what the federal government does or does not do in the coming months and years to incentivize and otherwise promote energy efficiency initiatives, most states are continuing to ramp up their own efforts.
These days, almost anything for the home can be automated. Door locks, window blinds, switches, toasters—all are available as "smart devices" connected to the Internet of Things (IoT). Despite this bevy of products, they can’t all work together.
Ideas That Work is one of the most consistently well-read features in the magazine. Every month, it fosters community and idea sharing among contractors, electricians, and installers with the goal of saving our readers time, money, and frustration.
Recently, LED lights have been touted as the technology that would catapult the nation's lighting program into the future, but there is now growing concern over the potential negative impact of LED lights on human sleep patterns and nocturnal animal health and behavior.
It can be safely said that 2016 has been a memorable year in Washington, D.C. Everything the experts knew about politics was turned upside down and inside out as the election results broke nearly every rule we have ever known.
Do you remember in the movie “A Christmas Story,” the dad wins a “major award” that turns out to be a table lamp shaped like a woman’s leg in a mini skirt? Classic! Think of this issue of ELECTRICAL CONTRACTOR as a major award on the topic of lighting.
Tiny video cameras mounted at the end of flexible cables. Infrared thermal imaging cameras that detect heat. The photo-taking capability of the ubiquitous smartphone. High-definition digital video and photo cameras mounted on unmanned drone aircraft.
Measuring tapes are a basic and necessary tool. When the dimension to be measured is inaccessible, handheld, laser distance-measuring tools may be the only safe and practical solution.
There are many options today for taking measurements on structured-wiring projects.
Laser measuring tools
Jim Dollard has an extensive background in codes and standards. If you have a query about the National Electrical Code (NEC), Jim will help you solve it. Questions can be sent to email@example.com. Answers are based on the 2014 NEC.
What is a knife switch?
The majority of LED lighting products use an electronic driver that functions similarly to a fluorescent ballast. The driver converts incoming alternating current (AC) to direct current (DC) and drives this current to the LEDs.
The U.S. DepartmentS of Labor and Health and Human Services estimate that more than half of all employers offer their employees some form of wellness program. Statistics also indicate most organizations that don’t have a program in place plan to add one in the future.
There is no doubt that video surveillance cameras are a critical, indispensable part of security at the customer’s protected premises. They can provide general security and assist with human resources functions when integrated with access control.
Soraa’s Barrel luminaire has a curved arch form and is available in 2-in.-by-2-in. and 1-in.-by-4-in. dimensions. It has an extruded aluminum frame. It is designed for shallow ceiling plenums where... READ MORE
Tyco Security Products’ AC2000 security hub is an alarm-management application that controls video, fire, intruder and building-management systems. It has an integrated video viewer for live and prerecorded video footage,... READ MORE
Litecontrol’s Arcos M5 P-ID-59M pendant-mounted luminaire is 23/16 in. high and 77/8 in. wide. It is available in one or two T5 or T5HO lamp cross-sections. Installation features include prewiring... READ MORE
The entire Philips Lighting luminaire portfolio can be accessed on mobile devices using the Philips ProLuminaire app, available for smartphones and tablets. The catalog can be browsed in any number... READ MORE
USAI Lighting’s 5-in.-by-5-in. square BeveLed Block completely encloses surface-mounted junction boxes in concrete ceilings. It emits white light in color temperatures from 2,200K to 6,000K and produces 25- to 90-degree... READ MORE
Orion Energy Systems Inc.’s ISON LED exterior area light is designed for surface lots, walkways, area and street lighting. Its die-cast, aluminum-alloy housing is available in three design options and... READ MORE
Zumtobel’s Ondaria 37-in. pendant luminaire delivers 10,384–11,307 lumens. It has a white enamel aluminum housing with a 37-in. diameter, a circular concave PMMA opal lens and a CRI of more... READ MORE
RAB Lighting’s STL360 Super Stealth Sensor 360 luminaire has three LEDs that continuously scan back and forth and can be controlled by motion sensors. The sensors can be time-adjusted from... READ MORE