ROOT!T Rootit Hobby Heat Mat for Seed Trays - Large 120cm x 40cm A quality electric heat mat to help your plants germinate. Has one coil heating element - 60W. Large size suitable for 4 standard trays 40cm by 120cm. FREE POSTAGE £42.95 Quantity: at £42.95 each Add To Basket A top quality horticultural heat mat from ROOT!T. Size 40cm x 120cm. 60 Watts. Suitable for four standard propagators, two large propagator or four standard seed trays. Warms root area to improve germination and rooting. Warms root area by between 5 degrees and 11 degrees over ambient temperatures. Fully waterproof. Durable and fray proof. Suitable for rugged and damp greenhouse environments.