Solar-powered irrigation controller with auto and manual mode, running time adjustable from 1 to 720 minutes, rain delay, integrated Li-ion battery, no power connection required, for G3/4 and G1 taps Cellfast is a leading European manufacturer of garden products, garden equipment and technical systems. With over 30 years of experience, the company combines innovative design with high-quality in-house production. Thanks to modern technologies, a wide range of products and international recognition, Cellfast is one of the strongest brands in the garden sector.