This injection moulded 10w electric propagator features carbon fibre heating elements for even heat distribution there are 4 mini individual vented propagators which is ideal as it allows you to grow a number of varieties of plant in this one unit all at once the overall length of this unit measures 385cmr features carbon fibre heating elements for even heat distribution base will raise soil temperature 8 degrees centigrade above ambient output 10w low running costs ideal for most ge