24 V RGB Controllers

Description : 110v AC input,  output 24 VDC ,green botton to freez any mix colors ,when it is unpressed-gragualy mixing colors.  
NV 4000 and NV 4002 same controllers by functions , just different wattage 7W and 70W, NV 4001 has many others function such as:  dimmer for each chanal, color time ajustment speed and modes :strobe ,fading time e.t.c. ,musik and mic input ,DMX input.and power output up to 150 W.