Do you have a smart phone? What about a smart watch? Tablet? Laptop computer? Backup battery? Each of these devices needs frequent charging, which means the charger will take up a precious electrical outlet somewhere in your home for hours at a time, and could prevent you from having to plug in something else that you may need. What’s worse, what happens when you lose your charger and are left with nothing more than a typical USB cable? You can’t plug that into the wall, so what good will it do?

Well, that’s not exactly true anymore. In recent years, because the USB platform has become so popular for smartphone and other device charging, electrical component companies have begun to make wall sockets with USB plugs already built in! These combo outlets give you the best of both worlds, allowing you to plug in your devices with a regular USB cable while keeping your electrical sockets open for additional plugs.

A USB combo outlet is remarkably simple, and can be retrofitted to fit nearly any already-existing outlet. Essentially the two electrical outlets are exactly the same, but they also have two USB outlets squished right in between them. When the electricity is fed to the outlet, it also feeds directly into a step-down circuit, which brings the voltage down from 110 volts to about five, which is the standard for that particular plug technology.

The other benefit is you don’t have to worry about a large or bulky charger potentially blocking up the other outlet. While most manufacturers have gotten pretty good about keeping their wall chargers small, some larger units can take up a big chunk of space on your wall, potentially hindering access to the other charging unit. Getting rid of these units entirely and charging off a USB port keeps both plugs free and open for other uses.

Think something like this would be far too expensive? Think again. The average cost of a USB wall socket is generally anywhere between $10 and $25 each, making them remarkably cost-effective. When you consider you don’t usually need any more than three to four of these outlets, you can make this switch for at most about $100.

That is, provided your home can support these new devices. A wall outlet sits inside a small metal case that’s mounted inside your wall, known as a junction box. Most modern junction boxes are fairly large, and upgrading to these new outlets isn’t a big issue. But some older homes were built with smaller junction boxes that won’t be able to fit the increased size of a USB outlet, which is normally roughly twice as deep as a traditional standard outlet.

constant-current LED driver or constant-current driver is used to regulate the amount of current that is supplied to an LED or LED array to maximize LED lifetime. If current is not regulated, LED brightness can fluctuate and life span can be shortened. The constant-current driver is used for LEDs or light fixtures that require a stable output current and operate within a range of voltages. Most finished LED products already have a constant-current driver or resistors to regulate current. If you’re building an LED fixture or replacing a constant-current driver, it’s important to verify that the output current and voltage of the driver is compatible with the LEDs’ current and voltage. If your LED product already has a constant-current driver or uses resistors in the LED array, you might need a constant-voltage power supply.

If your LEDs are dimmable and you want to change their brightness, choose a Magnitude Dimmable Power Supplies. These dimmable power supplies work by varying the power on the AC input side of the power supply by means of a TRIAC dimmer. This change in power on the AC input side will vary the voltage on the DC output side and control the intensity of the LEDs. TRIAC dimmers are common hardware store and household dimmers, which include brand names such as Lutron and Leviton.

Pulse-Width Modulation Dimming: Pulse-width modulation (PWM) dimming can be used to control dimmable power supplies such as Mean Well LPF Series. This type of dimming control adjusts the output current based on the duty cycle. As the duty cycle increases, current will increase and the LEDs will be brighter. Conversely, if the duty cycle decreases, the current will decrease and the LEDs will be dimmer. Pulse-width modulation for these drivers is based on a 10-volt signal level with a frequency between 100Hz-3KHz. The MLD-5A are compatible for this application.

Resistive Dimming: Resistive dimming can be used to control dimmable power supplies such as 12-Volt Mean Well HLG-40-240 Series or 12-Volt Mean Well HLG-600 Series or here.

The efficiency of a power supply or driver indicates the percentage of power that goes toward making your LED product function. An efficiency of 80 percent or higher is recommended for operating LEDs. 

When choosing a driver or power supply, the size of an LED product’s housing or area of installation is important. If you wish to put a constant-current LED driver inside of a product, the driver must be small enough to fit in the product’s housing. Similarly, if the driver or power supply is used outside of the product’s housing, it should fit the area of installation. Drivers and power supplies are available in a variety of sizes to suit your needs.

A Class 2 driver or power supply is in accordance with limited power levels defined by the National Electric Code (NEC) and fulfills the requirements of Standard UL 1310. Output is limited to 60 volts DC and 100 watts. Because power sources with this rating have limited output, it might not be possible to power as many LEDs or lights as those that don’t have a Class 2 rating. However, these power supplies and drivers provide protection from fire and electric shock.

A Class II rating refers to a double insulation layer between AC input and DC output wires. These drivers and power supplies do not require a ground connection.

Homeowners in Allen and other parts of North Texas know what time of year this is—and they keep the phone number for their top Allen electrician handy. Why? Springtime in North Texas is well-known for its potentially severe weather. Severe storms, along with extreme temperatures and lightning are just a few of the conditions responsible for rolling blackouts, power surges and power outages. Our weakened power grid and a growing population does nothing to alleviate the situation, which is why many turn to their top Allen electrician for tips on how to deal with the storm season.

Storm Season Tips

With the weather in North Texas being so unpredictable, how can you be sure that you are prepared to tackle what Mother Nature dishes out? Follow these simple tips to protect your home, your electrical system and your family from dangerous and frightening conditions.

#1 Have your electrical system checked regularly. With this storm season upon us, it is extremely important that you get in touch with your Allen electrician and have him look over your circuit breakers, wiring and outlets as part of his regular maintenance. Flaws in your electrical system, be it with breakers, wiring or any other aspect, combined with unpredictable weather, is the recipe for a very, very bad situation.

#2 Use power surge protectors on all your appliances. Did you know that, even a lightning strike that hits miles from your home can affect your appliances? Power surge protectors show up often in storm season tips everywhere, and there’s a reason why. Power surges can be deadly for your appliances and anything else hooked up directly into the outlet, particularly during lightning storms.

#3 Install a built-in surge protector on your circuit panel. This will protect everything hooked to the circuit panel from potentially damaging surges. Even when the power is restored after an outage, it often still does not come on right away; instead, it flickers, which shoots and cuts off electricity randomly to your appliances, ultimately causing damage.

#4 Always keep a weather radio handy. Weather alert radios are an invaluable addition to your home’s severe weather kit. In case of an emergency, an outage, lightning strike or blackout, you will have access to weather updates, evacuation information (if necessary), and instructions on how to keep your family and home safe in the event of bad weather.

#5 Invest in an indoor generator. Indoor generators are a great way to take a little pressure off of the overloaded power grid during a power surge or blackout. When there’s a blackout, the indoor generator kicks in, keeping a steady flow of electricity going to your home and keeping your appliances from getting damaged. Some generators are solar-powered, which can save you energy, time and money.

ElectricMan: Helping You Prepare

Severe stormy weather doesn’t have to be scary, inconvenient, dangerous or costly. Following these simple storm season tips can ensure that you and your family are spared the expenses and headaches that come with unpredictable weather in North Texas. For 27 years, ElectricMan has dealt with all sorts of electrical issues resulting from severe weather. Call us today at 972-301-2630 to learn more about how we can help you prepare for a stormy season. For more helpful tips on keeping your home’s electrical system running well, keep checking in with us at blog.electricmaninc.com or check out our website at www.electricmaninc.com today!