How to choose LED bulbs
The benefits of LED lights are clear. MIT Technology Review summarizes them:
For the consumer, the main benefits of LED devices are clear: they are energy efficient, can last more than 20 years and, in many cases, emit good light. Prices have dropped steadily, as LED components have fallen in price and lighting companies introduce better designs.
Consumers have suffered from confusion when selecting light bulbs, however. It is not surprising. LEDs come in different shapes and colors of light, and it's hard to know at a glance how they compare in brightness to our favorite incandescent bulbs.
To simplify the experience of buying and using LED bulbs, this is what you need to know, divided into five rules:
1. Install the LEDs where you will use them most
LED bulbs are still costly and so, unless you have the budget to replace all the bulbs in your home immediately, you will have to replace the bulbs while they burn out. In the long term, your investment will return energy savings.But, as Stacy Johnson, founder of Money Talks News, has learned, it doesn't matter where you use your LED bulbs if you don't expect your investment to return soon. Put an LED in your closet, for example, or another place where the bulb is rarely used, and it can be years and years before the cost of the bulb is paid in energy savings. It is best to use your LEDs where the reward will be faster, in the lighting fixtures that get more use in the high traffic parts of your home.
2. Lumens shop, not watts
Watts are a measure of the amount of energy the bulb draws, not its brightness. However, we are used to buying incandescent bulbs for their watts, and we know how much light is expected from a 60, 100 or 150 watt bulb.LED bulbs are also rated by watts. But that doesn't help because there is no easy way to compare LED watts with incandescent watts.
Incandescent LED Lumens
25 watts 3-4 watts 250
40 4-5 450
60 6-8 800
75 9-13 1,100
100 16-20 1,600
125 21-23 2,000
150 25-28 2,600
3. Get the color of the light you want
If it went out because of the harsh white light quality of the older LEDs, you'll be glad to know that there are more options now. LED bulbs offer a range of colors, from a warmer white-yellow, similar to the color of incandescent bulbs, to a whiter white or bluish white.Check the package of a bulb to know its color, these also shows its temperature on the Kelvin scale (learn more from Khan Academy). Kelvin's lower numbers mean a warmer colored light. The higher the Kelvin number, the more blue the light will be. EarthEnergy, a retailer, offers this guide to buy LED bulbs:
Yellow light: 2700-3000K.
White: 3500-4100K.
Blue: 5000-6500K
4. Match the shape of the bulb to your device
LED bulbs come in a number of unknown forms. You will find spiral bulbs, different types of balloons, spotlights, and some in the form of candle flames. A useful form is the MR16, a small, cone-shaped bulb.5. Choose the right bulb for dimmers
Another problem with LEDs used to be the search for bulbs that were compatible with dimmer switches in your home. Some buzzing, blinking or simply do not respond to a dimmer switch.The solution is to buy a nominal regulator switch for CFL and LED lamps. Two renowned manufacturers of CFL / LED dimmers are Leviton and Lutron; Both provide lists of bulbs that have verified that they will work with their dimmers.

Comments
Post a Comment