Timers and Controllers

Precise timing is fundamental to successful indoor growing. Photoperiod plants depend on consistent, uninterrupted light cycles to remain in their correct growth stage — any variation in the on/off schedule can trigger premature flowering in vegetative plants or re-vegetation in flowering plants. Timers and controllers automate your light schedule with the reliability and precision that manual switching cannot match, giving you confidence that your grow room environment is exactly as programmed every day.
Analogue Plug Timers
Analogue mechanical plug timers are the most reliable choice for simple on/off light scheduling. They use a rotating dial with 15 or 30-minute interval pins that physically open and close the circuit — they cannot lose their programming in a power cut and require no batteries or digital setup. For straightforward 18/6 or 12/12 lighting schedules, a quality analogue timer is all you need. Choose models rated to at least 3600W (16A) for use with standard 600W HPS setups.
Digital Timers for Complex Schedules
Digital timers offer programming flexibility down to 1-minute intervals and support multiple on/off events per day — essential for irrigation scheduling in dripper and NFT systems where multiple short watering cycles are required. Some digital timers include battery backup to preserve programming through power interruptions, preventing costly light cycle disruptions.
Environmental Controllers
Multi-function environmental controllers combine temperature and humidity sensing with multiple switched outputs — allowing you to control extraction fans, heaters, dehumidifiers and CO2 equipment from a single intelligent device. These controllers constantly monitor your grow room environment and automatically trigger the appropriate equipment to maintain your target parameters, removing the need for manual adjustments and providing a complete log of environmental conditions over time.
We have been supplying timers and grow room controllers to UK growers since 2017. Browse the full range below.