How to Reduce Your Cost of Outdoor Lighting, Part 1

We had a two-headed security spotlight above our garage for years. Every day when I pulled out of the garage to go to work, I would see that spotlight still on and it would drive me crazy. But not always crazy enough to stop the car, go back into the house and turn off the light.

In commercial buildings, lighting accounts for up to 30% of the total electricity consumption. For your home, it is much less – probably less than 15% of the electricity you consume is due to lighting. So turning a light off will not make a significant difference. Unless, of course, it’s your two-headed spotlight.

The math is much simpler than you would expect. If you have two 75-watt bulbs, then you are using 150 watts per hour. If those lights are on for 24 hours, then you are using 3600 watts per day. Since a kilowatt is one-thousand watts, you have burned 3.6 kilowatt-hours (kWh). At $0.15 per kWh, the cost of electricity from leaving your spotlights on all day is $0.54 per day.

So that $0.54 per day adds up to $16.20 per month, and $197.10 per year. Even if you remember to turn that light off 4 out of 7 days each week, it still is costing you $84.24 per year to light up one small area.

When I looked at those numbers I cringed – what a waste of electricity! This is one of the reasons that we at Mr. Beams™ wireless off-grid lighting are so passionate about our products. Yes they provide security from intruders and animals. They also help prevent falls in and around the home. And they save you the expense of an electrician because they are battery-powered and mount anywhere in minutes. But all Mr. Beams™ products stay off during the day and only turn on when they detect motion.

Compare that to the Mr. Beams™ LED security Spotlight with motion sensor. The Spotlight has a daylight sensor so it will only turn on at night. And it has a motion sensor so it will only turn on when there is movement. At $39.99, two of these Mr Beams™ Spotlights will pay for themselves in less than a year. You will never pull out of the garage and have to make the decision on how much saving electricity is worth to you.