What will be the length of the LED light required to be put around a painting which is in the shape of a parallelogram with base 2.5 ft and which covers an area of 4 sq ft.
Answers
Answer:
What is an LED Strip Light?
LED strip lights are new and versatile forms of lighting. There are many variants and exceptions, but for the most part, they have the following characteristics:
Consist of many individual LED emitters mounted on a narrow, flexible circuitboard
Operate on low-voltage DC power
Are available in a wide range of fixed and variable color and brightness
Ship in a long reel (typically 16 feet / 5 meters), can be cut to length, and includes double-sided adhesive for mounting
Anatomy of an LED strip
An LED strip light is typically half an inch (10-12 mm) in width, and up to 16 feet (5 meters) or more in length. They can be cut to specific lengths using just a pair of scissors along the cutlines, located every 1-2 inches.
Individual LEDs are mounted along the strip, typically at densities of 18-36 LEDs per foot (60-120 per meter). The light color and quality of the individual LEDs determine the overall light color and quality of the LED strip.
The backside of the LED strip includes pre-applied double-sided adhesive. Simply peel off the liner, and mount the LED strip to virtually any surface. Because the circuitboard is designed to be flexible, LED strips can be mounted on curved and uneven surfaces.
Determining LED Strip Brightness
Brightness of LED strips is determined using the metric lumens. Unlike incandescent bulbs, different LED strips can have different levels of efficiency, so a wattage rating is not always meaningful in determining actual light output.
LED strip brightness is typically described in lumens per foot (or meter). A good quality LED strip should provide at least 450 lumens per foot (1500 lumens per meter), which provides approximately the same amount of light output per foot as a traditional T8 fluorescent lamp. (E.g. 4-ft T8 fluorescent = 4-ft of LED strip = 1800 lumens).
LED strip brightness is primarily determined by three factors:
Light output and efficiency per LED emitter
The number of LEDs per foot
The power draw of the LED strip per foot
An LED strip light without a brightness specification in lumens is a red flag. You will also want to watch out for low cost LED strips that claim high brightness, as they may overdrive the LEDs to the point of premature failure.
Step-by-step explanation:
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