Steward Medium Heated Propagator - 38cmFixed temperature heated propagators featuring a sealed heating unit insulation beneath the carbon heating mat maintains selected compost temperature at 15 20C under normal conditions (the temperature can be affected by ambient temperature). These utilise a long life 22 watt heater, which uses less power than an ordinary light bulb. Fitted plug included. Dimensions: 38cm x 24cm x 21. 5cm Notes: Plants and pots not included.