Check the listing for details. Crestron J-Box Load Controller ZUMLINK-JBOX-16A-LV M201933001. Condition: New, Made in Mexico. Listed at 84.99 USD. The Crestron J-Box Load Controller ZUMLINK-JBOX-16A-LV M201933001 is a versatile electrical device designed for controlling lighting loads in a home or office setting. It is compatible with Zūm keypads, occupancy sensors, and vacancy sensors, and can support 0‑10V LED drivers or 4-wire fluorescent ballasts. Additionally, it features the capability to adjust brightness levels using both manual and automatic controls, including support for daylight sensors (sold separately). Made by the reputable brand Crestron, this load controller offers convenient and efficient control over your electrical outlets, making it an essential component for any modern home or office environment.