What are lumens?

While a watt is the measurement of how much energy is consumed by a light bulb (or other electronic device), a lumen is the measurement of brightness in light output. For instance, a single candle burning at your dining table provides about 12 lumens of light, while a 60-watt light bulb emits about 800 lumens.

Because CFL and LED bulbs consume much less electricity, looking at a bulb's wattage level will be difficult for comparison when making the switch from incandescent bulbs. Instead, lumens will be a better comparative measure as you can match the amount of light that an incandescent bulb produces with that of a CFL or LED. For example, when replacing the 800 lumens of a 60-watt incandescent, you can look for a CFL bulb rated at between 13 to 15 watts or an LED bulb rated at 6 to 8 watts.

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What's the best way to begin using CFL/LED bulbs?

With lighting accounting for close to 20 percent of the average home's electric bill, you'll start saving money and make an environmental impact by switching from incandescent bulbs to either CFL or LED bulbs. Here are some tips on strategies on how to get the most effect--in terms of energy savings and usage--from the switch:

• First change out older bulbs in rooms where lights are used the most, such as the kitchen, living room, and dining room.
• Match the light output (measured in lumens) of your new LED or CFL bulb to that of your old incandescent bulb so that you'll get the same amount of light.

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TP-LINK TD-W8970 Wireless N300 Gigabit ADSL2+ Modem Router, 2.4Ghz 300Mbps, 802.11b/g/n, 2 USB, 5dBi detachable antennas

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