What is LED Lighting?
LED stands for Light Emitting Diode. It is a semiconductor diode with two leads that when energized by electricity will emit light. LED light source is currently the latest technology providing a very high efficient most cost effective lighting product for use in homes and businesses. In today’s market all LED lighting will be very low wattage, so the two primary parameters to use when selecting a LED lighting product is Lumens and Color Temperature. (see answers to questions 3 and 4 below)
What is the advantage of LED lights?
The main advantage is efficiency, which mean over 80% of the power applied to a LED light source is converted to light. Thus LED sight sources use less energy than traditional lighting so will save on one’s electric bill.
What is Lumen?
It is a SI unit of luminous flux. (SI – International System of units.) There is an extensive technical definition of a lumen, but for a simpler understanding it is a unit used to define the amount of light from a light source such as an LED, CFL, halogen, incandescent or other source. In today’s world one of several parameters you should compare, is the lumen rating of various light sources you are considering to purchase.
What is Kelvin (color temperature)?
It is a measurement unit used to describe the color of a light produced by a light source. For lighting it will be referenced as ‘Color Temperature’. It is measured in units of kelvin and assigned the letter ‘K’. The full scale is 1000K to 10,000K. For residential and commercial lighting, the light sources typically will range from 2000K to 6500K. For reference, a candle flame is approximately 1850K. An incandescent light bulb is generally referenced at 2700K. A halogen lightbulb is referenced at 3000K to 3200K. A cool white/daylight fluorescent is referenced approximately 4800K to 5000K. Daylight sun is referenced at 6500K. In today’s world when purchasing a light source, kelvin color temperature is the second important parameter to compare.
What is the color rendering index (CRI)?
To try to keep this less technical, it is a measurement value of a light source’s ability to reproduce colors of objects compared to a natural light source such as outdoor daylight or another reference light source of an incandescent light. This unit of measurement has a maximum value of 100. An incandescent light source was referenced with a CRI of 100. Lower CRI’s will mean some colors will appear unnatural. This is why if purchasing a colorful product in a store using fluorescent lighting the color will appear different when out in the daylight. Cool white fluorescent lamps will have a CRI from 62 to 80’s depending on the phosphor used. LED light soured are generally greater than 82. The technology goal is to get closer to 100, but there is a light source increased cost to achieve this goal.
How efficient are the LED lamps?
Over 80% of the power applied to a LED light source is converted to light. For an incandescent less than 5% of the power applied is converted to light. It is measured in LPW (lumens per watt). An A19 incandescent light bulb will range from 12 to 17 LPW. LED light sources will range from 80 to 150 LPW. Some recent technical improvements there are some at 180 LPW. The high LPW LED light sources cost more to produce. Thus LED sight sources use less energy than traditional lighting so will save on one’s electric bill.
What is the goodness of Glass LED lamps?
BGLighting’s LED light bulb characteristics in the US market are distinctive since our products have a Classic light bulb look (similar to the products they are designed to replace): no metal, no plastics, no fins, etc. Our LED PAR lamps are unique in the industry since they are the first in the world to use classic borosilicate glass shapes providing a very similar appearance to incandescent and halogen lamps they replace. Also, borosilicate glass lenses are important to LED PAR lamps since they allow for a higher percentage of visible light transmission compared to lower quality glass or plastics used by other LED lamp manufacturers.
What is the lifetime of a LED lamp?
BGLighting’s LED products will provide very long life (25,000 hrs. up to 50,000 hrs.).
Can we use any dimmers to dim the LEDs?
LED light bulbs require a specially designed dimmer for use with LED lamps. The older dimmers previously used for incandescent or halogen lamps should not be used, as they might damage the LED lamp and or the dimmer. Per federal standards each LED lighting supplier should list on their web site dimmers that have been approved to work with their light bulbs.
What certificates your LED lights have?
BGLighting submits all lamps for ENERGY STAR testing, which takes many months to complete. Our web site will be updated as testing is completed. Please note that our 105 degree LED PAR30SN, PAR30LN, and PAR38 lamps recently received ENERGY STAR certification! Also BGLighting’s LED products are RoHS compliant, mercury free, lead-free.