Describe some of the many advantages of LED lamps over traditional incandescent lamps.
What will be an ideal response?
Better energy efficiency with an energy savings of 80% to 90%
A very long operating life (up to 100,000 hours)
An ability to operate at many different voltages, including 12V AC/DC or 85- to 240-volt AC
A cool light output with little or no heat energy produced
Available with narrow, medium, and wide angle lenses for a variety of light directions
Available in a variety of lighting colors including Warm White (2700K to 4300K), Daylight white (5000K to 6500K), Cool white (up to 8000K), Amber, Orange, Pink, Red, Cyan, Blue, Royal Blue, and Green
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Calculate the area of plate A, in inches.
A leader or ____________________ is an exterior vertical drainage pipe for conveying storm water from roof or gutter drains.
a. conductor b. downspout c. building sewer d. building storm drain
What part of a plant serves as the reproductive organs?
a. stem c. root b. leaf d. flower
In freeze branding, an iron is immersed in a container of liquid ____________________
Fill in the blank(s) with correct word