The Garland windowsill electric propagator is convenient and economical to run (13 watts). Unique design to utilise any well light windowsill for early start of seedling & cuttings. Three individual plant propagation units with clear covers (Height 19.5cm 7.75\") & vents allow three different environments. Individually adjustable ventilation allows you to create the ideal environment for propagation in each unit. Heated L 76cm (30\") x W 18.5 (7.25\") 230volt electric tray provides sufficient bottom heat for each of the individual units which may contain any variety of seedlings or cuttings you wish. Full instructions are supplied. 12 months manufacturers guarantee.