Brand Robatale Model 2B Quantity 1 Piece Color Red Material FR4 English Manual / Spec Yes Download Link http://reprap.org/wiki/Heated_Bed Other Features 1 12V connection : one cable connect with 1 another cable connect 2&3 at the same time; then the value of resistance of the 2 cables is 1.0~1.2real power is 144W. 2. 24V connection: one cable connect with 2another cable connect with 3(one pcs without connection).the value of resistance of the 2cables is 4.0Real power is 24*24/1=144W. New circuit whether meet the 12 v or 24 v the power is stable in 144 w. Has good welding LED and resistor The best PCB thermal compatibility bed support the 12 v and 24 v power supply. Features: 1 12 v power supply 24 randomly 2 double panel the other side without wiring uniform heating printing effect smooth Regardless of is negative 3 wiring wiring at will. The latest version mainly to upgrade the 12 v and 24 v power supply. Tested 144 w can make hot bed temperature of 130