Thinness, lightness and flexibility. Oil and acid . in use. Heating fast and high thermal conversion efficiency. Fiberglass reinforced silicone rubber stabilizes the dimension of heaters. Can improve heat transfer, accelerate warming and decrease power under the process of operation. Backing adhesive tape already applied. Can be firmly adhered to the of the added object. Easy to install. [Warm Reminder] Silicone heater can not be used in water. But it is ok if the is stained with some of water during use. Single-phase SSR-DA contactless solid state relay description: 1. dc-ac40A DC controlled AC converter; 2. Isolation voltageGreater than 2500VAC 3. Non-contact and non-sparking design Adapt to more use environment and longer service life; 4. The heat-dissipating bottom plate has no dots, and the fire-proof and flame-retardant shell is safe and reliable. Output current: 40A Control current: 5-20mA Control voltage: 32VDC Load voltage: 24 480 VAC Buck: less than equal 1.6V On-off time: less than equal 10mS Ambient temperature: -30 - 70 Off-state leakage current: less than equal 5mA Electrical life: longer life The range over 10a Must add heat sink Power: 200W Voltage: 24V Maximum Operating Temp: 200 size:235*235mm Material:Metal + silicone colour:Orange Package Contents: 1 * Silicone Heated Bed Pad 1 * solid state relay Only the above package content, other products are not included. Note: Light 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.