Feature: 1. Fast heating silicone rubber hot bed possess low power and high temperature, bring uniform heat transfer 2. The adhesive is easy to install, has strong adhesion and not easy to fall off. Silicone pad heats up quickly 3. Come with long life, high thermal efficiency conversion, easy installation. Power protection is safe and reliable 4. The relay module has fast switching speed, no sparks, no noise, no electromagnetic interference, no electric shock, possess long service life, strong anti interference, and strong compatibility 5. Bidirectional controllable silicon output, zero voltage turn on and off. Optical isolation between input circuit and output circuit, isolation withstand voltage 2500V before input and output Specification: Item Type: 3D Printer Silicone Heater Set Material: Silicone rubber + stainless steel Voltage: 220V Power: 450W Silicone Pad Size: Approx. 250 x 250 x 3mm / 9.8 x 9.8 x 0.1in Relay Module: Model: SSR-40 DA Load Current: 40A Load Voltage Range: 3-32VDC 24-380VAC Shutdown Voltage: ≤1.5VDC Control Current: <25mA Starting Current: 5mA Insulation Voltage: ≥2500VAC Applicable Models: For VORON. Package List: 1 x Silicone Pad 1 x Relay1 x Relay Metal Sliding Cover1 x Metal Bracket Note: 1. The limit temperature of the silicone heating plate is about 200 degrees(silicone material is resistant to temperature), and it is easy to burn out if it exceeds the heating plate. 2. The silicone heating plate cannot be used in water. 3. Silicone pad heats up quickly, please take measures to prevent scalding!