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.

Many of us know as the years go on families grow in number and size. Unfortunately, our homes don’t expand to make room for us all. To get that extra square footage or an extra room, a home addition is ideal. But it is important to remember that the additional room needs to be connected to the house perfectly in every way. There are many points to remember with home additions and its important that they are done right or you may need to end up redoing the room you just completed.

Whether you are looking at a kitchen expansion, a new bathroom, or a room addition, there are many things to keep in mind before you put the drywall on. The new space will new lighting, switches, outlets, and even temperature controls. Depending on the size of the space these items can require a significant amount of electricity. Adding this extra load to an existing circuit can bring that circuit over the limit. If this happens you are prone to power surges, electrical outages, and even fires. Depending on the size of your room you may need a new circuit in order to properly handle the new electrical load. This means doing an addition to your electrical panel. If not implemented properly, additions to the service panel can be messy and dangerous. Because the main service panel is the heart of your home’s electrical system you want it to be in the best shape it can be.

After reading this it can seem like a home addition is a larger undertaking than you previously imagined. That is why it is important to get professional help. There can be many code violations and hazards in your new home addition and you don’t want to close them up until you are sure you are safe. An expert electrician knows what to look for and what should be done to make everything right. And when it comes to electrical panel upgrades a professional can make sure that the panel does not become a dangerous container of wires.

If you are performing a home addition or room expansion, make sure that you are keeping your home safe and up to code. The last thing you want is to expand your home and lose most of it to an electrical fire. With an expert electrician you have peace of mind knowing that everything behind the walls is done correctly.