In the world of electronics, a light-emitting diode (LED) is one of most ubiquitous components available to the consumer. The simplest ones provide energy in a simple circuit for such low-power end uses as indicator lights. High-power LED circuits, on the other hand, are used to drive a variety of more sophisticated and energy-intensive applications such as outdoor flood lights, street lamps and billboards. Here are a few things to know about them:

  • What is a standard LED? – The simplest LED circuits are comprised of a voltage source connected in a series to a current-limiting resistor – also known as a ballast – and the light resisting diode (LED) itself. In addition, a switch is sometimes introduced to control the circuit. While this arrangement is suitable for small applications, it is a fairly inefficient from a power-use standpoint.
  • What constitutes one “high-power?” – LEDs should only be connected to constant-current sources – that is, ones with a series of resistors so that the current is passively stabilized. This arrangement of components keeps the LED from bring subjected to voltage spikes that might burn it out. Ideally, a constant current regulator is incorporated into the circuit to absorb current overloads or to maintain current delivery during voltage shortfalls.
  • Which one is right for your needs? – For almost every industrial or commercial use, a high-power LED is necessary. In addition, you should consider using the latest generation of LEDs – programmable and wireless, these constant current LED circuits are incredibly versatile, highly durable, tremendously energy-efficient and eminently affordable.

Without a doubt, constant current drivers are the component of choice when a company chooses to use a high-power LED circuit. FTP even more versatility and customization, look towards ultra high-density, open-frame AC-DC power supplies. Our team at Energy Recovery Products can help you with any of these products.

For more information on any aspect – basic or otherwise Ð of high-power LED circuits, please contact us at Energy Recovery Products. We design and manufacture small, smart and efficient LED driver power electronics. You can visit us online at or call us directly at 805-517-1300.