Color temperature is conventionally expressed in kelvin, using the symbol K, a unit of measure for absolute temperature. The three primary types of color temperature for light bulbs are: Soft White (2700K – 3000K), Bright White/Cool White (3500K – 4100K), and Daylight (5000K – 6500K). The higher the Degrees Kelvin, the whiter the color temperature.
The lumen count of a bulb will let you know how bright the bulb will be, with LED bulbs being designed to use very little energy, estimating brightness in wattage is no longer accurate. As a rule, the higher the lumens, the brighter your bulb will be.
This is completely depends on yourself. Most of our bulbs come in several colours, of which the most commonly used are Warm White and Cool White. Warm White has a softer feel and is ideal for living areas and bedrooms while Cool White is brighter and whiter and is therefore used mainly used in kitchens and bathrooms.
Incandescent bulbs cost much less than their energy-efficient alternatives – mainly CFLs (compact fluorescent lamps) and LEDs (light emitting diodes). ... The typical incandescent bulb lasts about 1,000 hours, while a 15-watt CFL bulb lasts 10,000 hours and a 12-watt LED bulb lasts 25,000 hours.
A19 and A21 are actually describing their shape through a letter code (A) and their diameters in eighths of an inch. A typicalA19 is 2.375 inches in diameter (19/8 = 2.375) and 4.13 inches in height, while an A21 is 2.625 inches in diameter (21/8 = 2.625) and about 5 inches in height.
Due to very efficient thermal management, LED Bulbs are able to remove heat through heat sinks to help prolong the life expectancy of the bulb by slowing down lumen depreciation. A well-built LED with good thermal management should last at least 20,000 hours.
Yes. LEDs use very little power compared to halogen bulbs. While this is good news for your electricity bills, it also means they will not work with your existing dimmer switches. You can find suitable dimmer switches on our respective dimmable bulb product pages.
All the products on our website are accompanied by a clear image to make it easy to find the one you need, plus you can filter search results by various criteria including the shape of the light bulb and the type of cap or base. You’ll also find that most of our products have extensive data sheets. If you still need help, submit the form or call us.
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