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Edição de 14h56min de 29 de novembro de 2012

LED bulbs

Because of their wide and varied application, PAR light bulbs can consume a large portion from the energy used to light a residence or small business. About a dwelling or workplace you can find them in lots of locations which includes: recessed can lights, track lighting, residence safety lighting, stage lighting and use as individual spotlights in art galleries and museums. These applications often use high wattage bulbs operating for many hours per day which tends to make them prime candidates for replacement with power productive PAR LED bulbs. Depending around the application, a PAR LED bulb will ordinarily last 5 to ten instances as long as a halogen or incandescent PAR bulb though reducing power consumption by seventy percent or extra. PAR LED bulbs can differ widely in high quality, color temperature, beam angle as well as a amount of other aspects. Right here are 5 things to consider before you make your purchase:

1. Size from the PAR bulb: You are able to easily determine what size PAR bulb you happen to be looking to replace even when you have thrown away the packaging and/or your bulb isn't obviously marked. The two numbers quickly following the PAR designation certainly are a measurement on the bulbs diameter in eighths of an inch. By way of example, a PAR38 bulb will have a diameter of 4.75 inches (38/8 = four.75). Right here are some common PAR bulbs and their diameters:

PAR16 LED Bulb: 2" PAR20 LED Bulb: 2.5" PAR30 LED Bulb: 3.75" PAR38 LED Bulb: 4.75"

2. Beam angle: Do you understand the beam angle with the bulb you will be replacing? The beam angle of a bulb is measured because the angle involving the two directions opposed to one another where the luminous intensity is 50% on the highest luminous intensity. In simpler terms, the beam angle provides a single a sense of how wide the beam spreads out when emitted from the bulb and may range from a narrow spotlight to an incredibly wide floodlight. A PAR LED spotlight will normally possess a beam angle of twenty degrees or much less while a PAR LED floodlight can vary from the low twenty degree range the many strategy to forty-five degrees or much more. It really is almost a guarantee that you'll be dissatisfied with your purchase if, for example, you mistakenly invest in a PAR LED spotlight when replacing a halogen PAR floodlight. Note: it could possibly be difficult to obtain the beam angle around the bulb or packaging, but a quick search for the bulb model number on the manufacturer's internet site will normally lead to this information and facts.

three. Wattage: The fantastic news is that most LED PAR light bulbs will consume a great deal less power than the incandescent or halogen bulb that you are replacing. In some instances the energy financial savings is usually as much as 80% or far more! Nevertheless, we have been conditioned by the lengthy utilization of incandescent and halogen bulbs to associate a brightness (light output) using a particular wattage, but within the planet of LED lighting that doesn't tell the entire story. Wattage is truly a measure from the level of energy a bulb needs and not a measure of actual light output. Therefore, it is finest to search in the wattage distinction involving the bulb you're replacing along with the new LED bulb you're purchasing solely to ascertain the power savings you are able to expect to receive. You can expect to nevertheless find that most LED bulbs include a reference as to what wattage of typical bulb they can be capable of replacing, but be aware that several manufacturers and unscrupulous retailers overstate these claims by a wide margin. This leads us to take a closer appear in the light output of a PAR bulb as measured in lumens.

4. Lumens: Lumens are a accurate measure of light output and will assistance a prospective buyer of PAR LED light bulbs to far more accurately calculate which specific bulb they will must invest in in an effort to get an equivalent quantity of light. The scientific explanation of how lumens are measured is beyond the scope of this article, but the volume of light getting output by a bulb, in addition to the quantity of light really hitting the surface you happen to be trying to light (measured as lux) are crucial considerations when paying for a PAR LED bulb. Again, this information and facts may be hard to locate on packaging but is normally offered on manufacturer's websites. If spending time attempting to track down comparative lumen output information doesn't sound like a whole lot exciting you are going to really need to be certain and obtain your LED bulbs by a trustworthy source that does in-house testing and delivers comparison numbers you are able to trust.

5. Lifespan: A different element to think about may be the lifespan of a PAR LED bulb versus that of an incandescent or halogen bulb. Halogen PAR light bulbs have an common lifespan of five thousand hours although, based on the make and manufacturer, the lifespan of LED PAR bulbs range from fifteen thousand to fifty thousand hours. Also, the lifespan of an LED bulb just isn't calculated around the time to failure, but around the time it will take the light output of your bulb to depreciate to 70% of your original brightness. This is absolutely a thing to contemplate when taking a look at the price tag of your LED bulbs which tend to be several times more high-priced than halogen bulbs. You could finish up going by the expense and trouble of replacing five or ten halogen bulbs when a single PAR LED bulb would nonetheless be going strong. The extended lifespan and cost of an LED bulb should also lead you to take into consideration the significance of obtaining from a reputable source and investigating what type of item warranty is provided.

LED lighting continues to make fast advancements inside the areas of brightness, efficacy and color output, and as LED bulb prices continue to drop additional shoppers are enjoying the advantages of this power saving and eco-friendly technology in their residences or companies. Educating your self regarding the sort of PAR bulbs you at the moment have and doing just a little homework on what LED PAR replacement bulbs are obtainable will go a long way in the direction of helping you make a terrific acquire.

LED bulbs