Omni-Directional
Superior power, numerous options for outdoor fixture versatility.
Keystone omni-directional LED HID lamps provide the powerful light you need for a variety of applications. Just disconnect the ballast, screw in the corn cob, and you’ve got energy-efficient illumination without needing to replace the fixture. It’s easily customizable with numerous features and accessories, too.
Power and Color Select
Field-adjust power output and color temperature with Power and Color Select technology. Our LED corn cob lamps are available with selectable outputs from 18W all the way up to 100W and have adjustable color temperatures of 3000K, 4000K, and 5000K. Dedicated wattage options are available as well.
Cool under the hottest conditions
Our SmartCool technology extends the life of our LED HID replacement lamps by using a thermal sensor that activates during extreme high-temperature conditions, reducing power by up to 30% to cool the lamp. Once the sensor reaches an acceptable temperature, the lamp gradually returns to full output.
Bypass the ballast
These LED HID lamps feature an integral Keystone driver, eliminating the need for a ballast or external driver and ensuring dependability and long life, saving on maintenance and reducing energy use. And our fail-safe technology ensures the lamp will not turn on if connected to ballast by accident.
A variety of applications
Use these corn cobs to replace legacy lamps in wall packs, canopies, and shoeboxes. They’re also great in large sign cabinets, where their bold, easily adjustable light can illuminate new construction and retrofits.
Ideal for sign cabinets, large and small
With a range of power outputs and lamp sizes, Keystone has lighting solutions for sign cabinets of any dimension.
Big is no problem: Our Sign Base Station is designed for use in large, deep, double-sided sign cabinets.
Socket base adapter
Turn your E26 base into an E39 with our socket base adapter.