These Propagation Heating Mats Will Turn Greenhouse Staging Or Potting Benches Into The Propagation Nerve Centre Of Your Greenhouse.available In 3 Sizes, Each Mains-powered Propagation Mat Is Fitted With A Fully Adjustable Thermostat And Soil Sensor, Helping To Ensure The Temperature Of The Rootzone Soil Is Accurately Recorded And Giving Your Seedlings Every Chance Of Germinating Uniformally And Developing Strong Roots. The Heated Propagation Mats Are Spray-proof, Suitable For Overwintering Container Plants And Have A 3 Year Manufacturers Warranty.propagation Heating Mats Supplied With Thermostat And Soil Sensor For Accurate Heating3 Sizes Available - See Belowthermostat Range: 0-40cmats Can Be Placed On Greenhouse Staging, Benching Or Potting Surfacessimply Plug Into Mains To Operatecapable Of Heating Soil Up To A Toasty 35c1.2m Of Mains Cableused For The Successful Germination Of Seeds And Cuttingsbottom Heat Encourages Roots To Develop And Groweven Heat Distributionip64 Spray-proof Ratedcovered By 2 Year Guarantee available Sizes And Outputs:40cm X 75cm - 65w40cm X 200cm - 157w60cm X 200cm - 263w