NOTE: This controller is suitable for 12v/24V single color LED strips/LED modules/luminous characters... USE 12V: 36W OR 48w/CH USE 24V: 72W OR 96W/CH Product Introduction: This controller can be used in low voltage and constant pressure LED products, one positive electrode, four negative electrode. In order to achieve the effect control of different ways to achieve super dazzling dynamic effect, widely used in billboards, light boxes, shop. Technical Parameters: Led 9-channel low-voltage single color light controller Input Voltage: DC12V- 24V Output Voltage: DC12V-24V output: 3A/channel Total Output : Max 27A, 9CH x 3A Product Size: L68 x W44 x H18mm Color: Black Led 4-channel low-voltage single color light controller Input Voltage: 12V- 24V Output Voltage: 12V-24V output: 4A/channel Total Output : Max 16A, 4CH x 4A Color: Black Material: Steal+Plastic Package Contents: 1*9-channel controller 1*4-channel controller Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.