Welcome To Our Store:Specifications1 layer 35μm copperVoltage: 12/24VResistance: 1.4-1.6 Ohm at 12V5.0-5.4 Ohm at 24VMax. Temp: 180° CHeating Time: 24V reaches 100° C in 2 minutesDimensions: 215x215x3mmWeight: 363gColour: Black with White Mask/TextMK3 can choose 12 v and 24 v two voltage，12 v ：one line thread cross 1， another cross 2， 3；24 v ：one line thread cross 2， another cross 3 (1 don't need to pick up).The new circuit， whether meet the 12 v or 24 v， the power is stable.package include1x Printer Heatbed