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LED Lighting FAQ (Frequently Asked Questions)

How much heat is generated by LED light bulbs?

Posted by Sales Team on

Shoppers of LED light bulbs often ask how much heat is generated by LED bulbs in comparison with incandescent or halogen bulbs. Contrary to some marketing claims, LED bulbs do indeed generate heat as does anything that consumes electricity. The important thing to keep in mind is that LEDs consume a lot less energy than incandescent or halogen bulbs and are much more efficient in how they use that energy versus traditional bulb types. Thus while LEDs will generate heat, it will be a fraction of that compared to a traditional technology bulb. The ultimate temperature at which the external...

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Do I need a special dimmer switch for LED light bulbs?

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While most LED bulbs are now dimmable, not all of them are and not all of them dim in the same manner Since LEDs consume such a low wattage, many types of dimmers do not function with LED in the same way that they do with high wattage load incandescents. When dimming an LED you may notice the following: Smaller amount of dimming rage (Typically 70-90% range vs. 100% with incandescent) LED Bulbs may not shut off at lowest dim setting: this is caused by the dimmer thinking the bulb is completely off due to the low amount of wattage an...

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What is the difference between a shunted and non-shunted tombstone?

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Shoppers of ballast bypass LED Tube lights will often come across documentation in install guide specifying that the LED tube light must use a non-shunted tombstone.  Due to potential safety hazards of interacting with line voltage, (which can be as high as 277V in commercial applications), safety testing organizations such as UL have introduced standards to ensure that this product can be installed safely. The result is that most products in this category have to be installed with the line voltage input into one side of the tube.   Buy Thinklux Non-Shunted Rapid Start Tombstones for LED T8 Conversions -...

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Does a Higher Color Temperature (Kelvin) Bulb Produce More Light?

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When shopping for LED bulbs, the color temperature of the light, rated in Kelvin, is a frequently cited specification. Shoppers are often confused if buying a higher Kelvin bulb will produce more light. As we described in our Lumens vs. Kelvin FAQ, Lumens are a measurement of total light output while Kelvin describes the color of the light. LED bulbs of a higher Kelvin may appear brighter due to the higher contrast the cooler light provides but often are equal or just slightly brighter on a Lumens measurement. Ultimately, the choice in color temperature should be made on the basis...

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Can I Use a T8 LED Tube in a T12 Fluorescent Fixture?

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Buyers of LED fluorescent replacement tube lights often ask if they can use a T8 sized LED tube in a T12 fixture. We cover most of the basics on how to choose LED tube lights for your application here but customers are often confused after purchasing when they receive an LED that is marked as T8. As we describe in our how to article, T8 and T12 feature the same G13 bi-pin connector. T8 tubes are simply 1 inch in diameter versus the 1.5 inch diameter of T12 tubes. In an effort to make LED tube lights compatible with the internal dimensions...

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