Did you know that by simply replacing your home's incandescent bulbs with LED ones, you can significantly reduce your energy bill? But it's not just a matter of choosing any LED bulb. If you want to get the most out of your investment in terms of energy efficiency and light output, you need to make sure that you choose the right wattage for each room.
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To simplify this process, as a general guide, a traditional 60-watt incandescent bulb can be replaced with an LED bulb with a wattage between 8 to 12 watts, and a traditional 100-watt bulb can be replaced with an LED bulb with a wattage between 15-20 watts. But, to find the ideal wattage for each specific room and use, you can use this formula:
Total Wattage = (Square Footage of the Room x Desired Footcandles) / Lumens per Watt
For example, if you have a 100-square foot bedroom and want a typical light level of 30 footcandles, you would need an LED bulb with a luminous efficacy of 100 lumens per watt and a total wattage of 30 watts. From there, you could opt for three 10-watt LED bulbs or two 15-watt LED bulbs to reach maximum energy efficiency while achieving the lighting you need.
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Don't forget to also think about the color temperature of your LED bulbs, which can affect the ambiance and mood of each room.
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