It’s always easy to tell when summer rolls around.  The temperature outside soars, and so does your electricity bill.  Wouldn’t it be great if a top Dallas electrician could save you money on your electric bill?

Everyone knows why your bills get so expensive; you’re running your AC almost all the time.  In fact, the condenser for your air conditioning unit uses more electricity during the summer months than any other appliance in your home, even notorious energy hogs like your refrigerator. There are things an electrician can do to save you money, and electric safety tips you need to know to protect your home, business, and loved ones from disaster.

These days most people call an AC service company the minute an air conditioning problem comes up.   That isn’t always the correct move, though.  In my experience, about half of all the problems that arise with air conditioning systems are electrical problems.  Some of my best customers began using my service because I could help them figure out whether they should be calling an electrician or an HVAC technician to solve their problem.  Obviously, if the problem is the AC unit or condenser, an AC repairman is the way to go, but he doesn’t necessarily understand the details of your home or business electrical system.  There are a few things you should know about your air conditioner from the electrician’s point of view.

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.

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2. Ricky Martin wins Song of the Year

Puerto-Rican heart throb Ricky Martin played a huge role in bringing Latin pop to the American music scene during the 41st Grammy Awards show in February of 1999. In December he was rewarded again at the Billboard Music Awards by winning Song of the Year for his hit single “Livin’ La Vida Loca.”