Over recent years, there’s been a growing movement by the EU and the UK government to accelerate the withdrawal of dangerous substances in electrical and electronic devices - such as conventional ...

The European standard EN61000-3-2 sets tight restrictions on lighting devices that consume more than 25 W with regard to total harmonic distortion (THD). These lighting devices also need to follow the ...

Should transmission and differential fluids be changed on a 2006 Subaru Outback with only 41,000 miles? Since car batteries are so expensive, is it possible to use a cheaper marine battery in an ...

Figure 1. Cutaway of the membrane feature of waterwall panels. Source: Reference 1 via Reference 2. This author’s experience includes nearly twenty years at two coal-fired power plants. The defining ...

Knob and tube wiring replacement costs are higher than many other home improvement projects at $24,300 on average or between $12,000 and $36,600. Homeowners can expect home size, accessibility of the ...

A new study by the University of Michigan School for Environment and Sustainability Center for Sustainable Systems in Ann Arbor shows LED lighting is up to 44 percent more efficient than four-foot ...

Developed originally to easily display numeric and text data on the cheap and popular 7-segment led displays or "tubes", from 1 to 8 digits, like the "4-Bits LED Digital Tube Module" (and for all the ...

Alexandra Twin has 15+ years of experience as an editor and writer, covering financial news for public and private companies. Vikki Velasquez is a researcher and writer who has managed, coordinated, ...

How much does a city save when it replaces its streetlights with LEDs? It’s a lot — today, the companies Ubicquia and RealTerm Energy reported results from six LED streetlight replacements in Maine, ...