Electricity exists everywhere, from high voltage power lines to phones and computers. Understanding the basics of how it works remains essential to using it safely and efficiently.

When electricity travels from a positive lead to a negative lead in a circuit powered by a battery, it is considered direct current. This type of current powers electronics, LED lights, and cars. Alternating current is generated from rotation, usually by a generator. The direction of the current and the voltage flips as the generator completes a rotation. The faster the generator spins, the faster the flipping of current direction occurs. In North America, the typical frequency of AC power is 60hz or 60 alternations per second. The advantage of AC power is that the voltage can be stepped up easily by use of a transformer, which allows high voltage transmission. AC power is also useful for electric motors.

Specifically, power is a measure of energy usage over time. The standard unit of power is the watt and calculated as P (watts) = V (volts) x I (amps). Utility companies sell electricity in units of kW*h (kilowatt hours), which is simply one kilowatt of power delivered continuously over one hour.

Whenever you have time to thoroughly clean your home, you usually try to get the portions that are hidden from view. You check under the bed, vacuum beneath the cushions, or dust the tops of shelves—anything you can do to keep every part of your home sparkling, even if there’s no one around to see it. So why would you neglect to clean the ductwork?

Saffron’s Drift Light is here to help. The Drift Light is like a normalAmanda Kooser reviewed the Drift Light earlier in the month. Kooser reports that during the first night, she was highly aware of the way the light was dimming, but during the next few nights, she never caught the light turning off because she was already asleep. As somone who claims to have “notorious” sleeping troubles, this would imply that the Drift Light works pretty well.

Kooser says that since you know the LED light bulb will dim over the course of 37 minutes, it’s easy to plan for the light to turn off around the time you want to fall asleep. The most compelling statement Kooser makes about the Drift Light: “There is something soothing about the world dimming around you. It’s like being a kid with an early bedtime, sensing the sun set outside your window.”

I’m interested to see if this product will become popular. Have you ever tried anything like this to improve your sleeping habits? Leave a comment, and let us know!