---
title: "What Is LED driver? Electrical Glossary | Daniel Electric"
description: "An LED driver is the power supply inside an LED lamp or fixture that gives the LEDs the steady, controlled current they need."
url: https://danielelectric.multisites.ai/glossary/led-driver
publisher: Daniel Electric
phone: +1-817-481-8606
quote: https://danielelectric.multisites.ai/contact
---

Lighting

# LED driver

An LED driver is the power supply inside an LED lamp or fixture that gives the LEDs the steady, controlled current they need.

LEDs need steady, controlled current, so most lamps and fixtures include a driver. The Department of Energy notes that, because of integrated ballasts or drivers, LED lamps are typically bigger than incandescent bulbs, especially near the base. A driver that fails can make an LED light flicker or go dark.

Dimming needs a compatible driver and dimmer. See [ballast](https://danielelectric.multisites.ai/glossary/ballast), the older part that does a similar job for fluorescent and HID lamps, and [dimmer switch](https://danielelectric.multisites.ai/glossary/dimmer-switch). Replacing a driver means opening a fixture, so use a licensed electrician. See [LED lighting installation](https://danielelectric.multisites.ai/led-lighting-installation).

[Daniel Electric can helpLED lighting installation](https://danielelectric.multisites.ai/led-lighting-installation)

## Related terms

-   [Ballast](https://danielelectric.multisites.ai/glossary/ballast)
-   [LED](https://danielelectric.multisites.ai/glossary/led)
-   [Dimmer switch](https://danielelectric.multisites.ai/glossary/dimmer-switch)
-   [Retrofit](https://danielelectric.multisites.ai/glossary/retrofit)

## Sources

1.  [U.S. Department of Energy FEMP: Purchasing Energy-Efficient Light Bulbs](https://www.energy.gov/cmei/femp/purchasing-energy-efficient-light-bulbs)
2.  [U.S. Department of Energy FEMP: Purchasing Energy-Efficient Light Bulbs](https://www.energy.gov/cmei/femp/purchasing-energy-efficient-light-bulbs)

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## Need an electrician in Southlake?

Call and tell us what is going on. A photo of the panel label or the problem helps us come prepared. Quotes on new installations are free.

[Call (817) 481-8606](tel:+1-817-481-8606)[Get a quote](https://danielelectric.multisites.ai/contact)

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