If you’re a business owner with expansive office space, the reality of energy costs may hit you harder than the homeowner or small company. One of the biggest culprits of this is lighting.  Switching all of your bulbs to LEDs is an excellent start to reducing the energy bill.

The next step involves making use of the leading edge dimmer switch. As the name implies, it allows you to manually dim the lights to either alter the atmosphere of a room, or conserve energy – it does both, of course, but generally one of the reasons is preferred over the other.


Trailing edge dimmers are great for low voltage transformers and differ from the leading edge dimmer switch in that it doesn’t have a big inrush of voltage and an accompanying buzzing sound when implemented in LED lamps. They’re also known as electronic dimmers. Leading edge variant, on the other hand, is known as the incandescent dimmer.  Sometimes it will buzz when the lamp is dimmed, because of the rapid in-rush of voltage that is a component of its design.

Why choose one over the other? It depends on the expertise of the manufacturer – the buzzing sound isn’t a given, especially if the LED lamp is well-designed and the load requirements are adequate. Either dimmer is a good choice, especially since LED manufacturers build their lamps with compatibility of the two designs in mind.


ERP provides power supplies, the leading edge dimmer switch you need for your LED lighting, and constant current LED drivers. Industries far and wide have benefited from our products, which are designed and manufactured in a top plant in China – although our home base is the tech ground zero of Westlake Village, CA. Peruse our website for more information of the range of products we carry.  You can also find our contact information there.