Compact 4-Pin
LED Bulb

The ideal upgrade from CFL to LED.

With options to fit your application and adjustable features, our SmartDrive ballast-compatible compact LED bulbs are the perfect choice for upgrading from legacy 4-pin CFL lamps in downlight applications.

Color Select

Field-adjust color temperature with Color Select technology. Our 4-pin lamps are available in two different trios of CCT choices so you can set the color temperature right for your environment. Dedicated options are available as well.

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Horizontal lamp with Color Select

Vertical lamp with Color Select

Dedicated horizontal lamp

Dedicated vertical lamp

Horizontal and vertical styles

With horizontal and vertical orientations, these lamps can be used in a wide variety of applications. The horizontal lamp features a rotatable base, so you can direct the light where you want. Available in selectable or dedicated color temperatures.

See Horizontal Models See Vertical Models

SmartDrive technology

When replacing your old CFL bulb, no need to change any wiring or setups. Just plug and play—and enjoy greater efficiency with less maintenance.

Find the lamp you need

Not sure what lamp you want? Keystone has a downloadable Lamp Bases Guide on our website. It shows common pin bases with simple-to-understand illustrations.

Download Lamp Base Guide

Upgrade your fixture

Improve the aesthetic of your space with our stylish Advanta recessed downlight. Remove the entire fixture housing and use the existing mounting plate and junction box. Then, wire in our in our recessed LED fixture with integrated driver and create a fresh new look.

Learn More About Advanta