Optimum Timer (formerly Grasslin)

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Grasslin Segmental timers have recently been rebranded as Optimum timers but are still manufactured by Grasslin to the same high standards for which Grasslin are known. These timer s have endless uses in the growing environment from ventilation equipment to controlling irrigation frequency to controlling light-cycles (when used in conjunction with a contactor/relay).The 24 hour period is split into 15 minute segments which can be positioned in either the on or off position. Once set and in use the 24 hour period remains clear enabling the user to check the cycle at a glance, their simple operation makes them much favoured over their digital equivalents.Grasslin Timers are limited in the electrical load that they can handle, therefore if you are considering plugging your HID light into it, we would suggest you consider upgrading to one of our products designed to safely handle more than one grow light - for example the Maxiswitch 2-Way Controller. Or for a single HID light up to 600W a Heavy Duty Timer will do the job. Show more