MDF Contactor Board The MDF Contactor Boards are perfect for hydroponic gardeners who are using grow lights and extraction fans. It’s due to its

Ecotechnics Powerstar contactor/relays plug into your timer when using lights to protect it against the large load of the control gear.

Ecotechnics Powerstar contactor/relays plug into your timer when using lights to protect it against the large load of the control gear.