Experience the power of RAB Lighting's Smart and Selectable HID Replacements - lamps that pack the punch of nine in a single bulb! These field-adjustable lamps feature a power selector that lets you toggle between three different lumen outputs, giving you the freedom to adjust the installation to your preference and optimize energy savings or light output. Plus, with a simple twist of the knob, you can choose from three different color temperatures to achieve the ambiance you desire. These LED corn cobs are compatible with 277/480 V, and installation is a breeze - simply remove the ballast from the application and enjoy an enhanced lighting experience!