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Home Office Home Remodeling. Kitchen Living Room. Lighthouse Hydro Luceco Nanoleaf. Every room in your home is different. Lower temperature bulbs produce warm-whites, similar to a fire, while medium temperature bulbs produce neutral-whites, and higher temperature bulbs produce cool-whites or mimic daylight.
It is also a common misconception that the brightness of a light bulb is measured in Watts. Watts actually measure energy usage, while Lumens measure brightness.
This is a measure of the light bulb's ability to accurately show the colours of objects in the surrounding area, using bright natural light as a reference point. A CRI of indicates perfect colour appearance, while a very poor colour rendering could rate zero or less. A light with excellent CRI should show the surroundings in the same colours you'd see in bright sunlight, while a poor CRI could cause odd red or blue tones to appear.
LEDs are usually bulb-shaped. CFLs are tubes, spirals or bulbs. The shape of a light bulb isn't a major factor in its brightness, but does determine the direction in which most light is thrown. A folded tube emits most of its light out of the sides and should be installed lengthways so the side faces out or down.
A spiral emits light from its end and sides, so it suits most light fittings, but they can be too bulky for some. Many CFLs and LEDs are suitable for use with dimmer switches, but check the packaging to make sure you have the right type. Instant light. Most CFLs activate almost instantly with a reasonable light output, so they're usually fine for use in stairways, cellars and other areas where you need immediate, bright light.
As a CFL ages it may become noticeably slower to activate. LEDs activate instantaneously and can be used in any area. Light fittings. However, the light fitting's size, whether it has an effective reflector dish, the translucence of the glass and so on can make a big difference. Small enclosed light fittings can trap heat even from a CFL or LED light bulb and reduce its life, so a halogen lamp, which is less susceptible to heat, may be the solution in that case. Or, get a new light fitting.
A little history about LED light bulbs and their prices. LED light bulbs have electronic circuits in their ballast the base to control the LEDs, so naturally they are more expensive than an incandescent or halogen bulb to manufacture. CFLs also have some electronics in their ballast. If you want to get technical, the color of light on the white light spectrum is called color temperature, and it's measured on the Kelvin scale.
The lower the number, the warmer yellower the light. Your typical, soft white incandescent is somewhere between 2, and 3,K, so if that's the color you're going for, look for that range while shopping for LED bulbs. Want something daylight toned? Look for bulbs rated at 5,K or higher. Not sure which to buy?
Read our warm light bulbs versus cool light bulbs comparison to help you decide. It used to be that you could grab an incandescent bulb at the hardware store for a buck or so. Then, LEDs came along -- most of them costing a lot more. But the dollars and cents don't stop there. You need to factor in the cost of using the bulb -- and the great thing about LEDs is that using them doesn't cost very much at all.
A 60W-replacement LED that puts out the same amount of light will draw as little as 8 watts, and only add about a buck to your energy bill over that same year-long span. In the meantime, you'll enjoy less heat production, longer bulb life and even the option of controlling them with your smartphone -- and it won't burn out after a year, either.
Because of their circuitry, LEDs are not always compatible with traditional dimming switches. In some cases, the switch must be replaced. Other times, you'll pay a little more for a compatible LED. Most of the existing dimmers in homes today were likely designed to work with incandescents.
Dimmers like those work by cutting off the amount of electricity sent to the bulb in rapid-fire succession, faster than the eye can detect.
Which begs the question — how bright is K versus K? Or K? While personal tastes will vary, less than K is best used for areas where a bright light is not needed — for example, an accent lamp in the living room whose purpose is to provide a warming glow. Lighting over K is rarely used in the home, but is very common in commercial lighting.
This is why the CRI rating is not as important to know as the watts and color temperature. The ability to purchase an LED bulb and screw it into an existing incandescent or compact fluorescent fixture like you can with a CFL is known as retrofitting.
Retrofitting is more popular these days and many options are available. Each YLighting article is backed by the authority of the highest rated service team in the industry. Chat on-line or give us a call toll-free. If you used to buy: Now look for: watt incandescent LED watt range of lumen output 75 watt incandescent LED watt range of lumen output 60 watt incandescent LED watt range of lumen output 40 watt incandescent LED watt range of lumen output.
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