4 x MATRIX DMX PRO 4Ch. Double Output Dimmer Pack System w/ 4x XLR DMX – BulbAmerica
Karnel Dimmer 4ch 200 W 01239300 FW 5D49 | eBay
DIN rail 1-10v dimmer,4ch.5A/CH,SR-2002DIN, View 1-10v led dimmer, Sunricher Product Details from Shenzhen Sunricher Technology Co., Ltd. on Alibaba.com