Check the listing for details. Crestron CNL DAB4. Condition: Open box. Listed at 70.00 USD. Fluorescent Dimmer - Operates Advance Mk VII ballast, controls 4 zones, 120 or 277VACThis was an order never picked up by customer. I can not test it so it is sold as is. It looks brand new. The CNLDAB-4A dimming module provides 4 channels of dimming for fluorescent lighting fixtures equipped with Advance Mark 7® 0-10V fluorescent dimming ballasts. The CNLDAB-4A occupies a single module space in any CSTC cabinet, or two spaces in a CLC-6 cabinet. The unit is designed to communicate with the PAC2 control system, or any Crestron control system, via the Cresnet control network.I will ship it fast and free to most domestic USA locations. If you are in California it will have an extra shipping charge of 20$ to pay for the extra charges to ship to that state.Thanks for considering our listings!