8 Facts About LEDs 2/28/2018
LEDs are on track to save consumers & businesses alike around $20 billion a year in electricity costs in a decade and lower our CO2 emissions by 100 million metric tons per year.
image courtesy of the U.S. Department of Energy
1. A light emitting diode (LED) is a semiconductor device that converts electricity into light. LEDs are a type of solid-state lighting, a term which differientates this technology from other sources which use heated filaments (incandescent) or gas (flourescent).
2. The first practical visible light emitting diode was created in 1962 by a consulting engineer for General Electric, Nick Holonyak, Jr.
3. ENERGY STAR rated residential LEDs use 75% less energy and last 25x longer than their predecessor, the incandescent bulb. A typical incandescent bulb only lasts around 1,000 hours while you can expect a useful life of anywhere from 30,000-50,000 hours from a good-quality LED product.
4. LEDs use energy more efficiently with little wasted heat, unlike incandescent bulbs which release 90% of their energy as heat. The heat that is produced is absorbed by heat sinks and dissipated into the surrounding environment.
5. Different bulbs emit light at different color temperatures which determines the color of its light. Most bulbs emit a white light, but this white light can range from warm to cool.
Produces an intimate, inviting glow
6. Light Emitting Diodes do not emit UV rays or infrared radiation which can have harmful effects on people, materials, paints/dyes and heat-sensitive areas. This makes them ideal for use in retail stores, museums and small spaces where excessive heat could become dangerous. Additionally because LEDs do not emit Ultra-violet rays, few insects are attracted them when compared to traditional light sources.
Cool or Bright White
Produces a bright, vibrant light
- • Color Temperature (KELVINS): 2,000-3000K
- • Appearance: Orange to yellow-white in appearance
- • Ideal uses: most residential interior applications (i.e. bedrooms, bathrooms, dining rooms, etc.), decorative exterior lighting, ambient lighting for commercial applications.
Produces a crisp, invigorating light
- • Color Temperature (KELVINS): 3100-4500K
- • Appearance: Neutral white, may have a slight blue tint
- • Ideal uses: basements, garages, kitchens and work environments
- • Color Temperature (KELVINS): 4,600-6,500K
- • Appearance: Blue-white light similar to daylight
- • Ideal uses: display areas, security lighting, task lighting, garages
7. LEDs are ideal for horticultural applications because of their ability to produce concentrated areas of light while emitting specific colors of the spectrum. When correctly used and regulated, the lights promote faster growth and stronger plants.
8. LEDs are considered "green technology" because they save energy, curb carbon emissions and do not contain hazardous materials such as mercury which is found in their CFL counterparts. Their long lifespan also means less wasted resources & less trash heading to our landfills.