DIG's LEIT 1™ single-station ambient light (solar) powered controller with a two-wire, DC latching solenoid is available with thee adapters to fit most valves. Powered by a photovoltaic module with patented microelectronic energy management system, the LEIT 1™ requires no batteries, AC power or direct sunlight to operate, and can be installed above grade in any location where there is ambient light.


  • No direct sunlight required
  • Environmentally friendly with no backup battery or AC power necessary; uses clean, renewable solar power
  • Power is provided by an internal, ultra-high efficiency photovoltaic module and microelectronic energy management system fueled by ambient light
  • Simple, icon-based intuitive programming
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  • Simple Smart™ historical ET feature for spray heads and drip irrigation automatically adjusts irrigation schedules monthly
  • Power level meter indicates the approximate charge (energy available)
  • On activation, the controller indicates if irrigation is set to water for the day and if any of the additional programming features are active
  • Daily and monthly programming restriction options to comply with city and municipal watering restrictions
  • Semi-automatic and manual operation with timed countdown to off
  • Program On/Off button allows the user to turn off the controller and reactivate it as desired
  • Retractable coiled cord for easy programming and review
  • Utilizes RoHS compliant components
  • Reset option allows erasing of all programs to default settings except time, day and date
  • Non-volatile memory holds programs indefinitely without batteries, except date and time
  • Completely waterproof (IP68)
  • Rain sensor connection included
  • Internal bleed via the solenoid for system checkup and testing
  • Captured solenoid plunger and spring for easy maintenance
  • Easily retrofits to most manufacturers’ valves with one of the three included adapters
  • Three-year warranty


how to specify
Model Description Color
LEIT-1 LEIT-1 Solar powered irrigation controller
Including three adapters


  • Power source: ambient light (PVM)
  • Controller power input: 3,000 -100,000+LUX
  • Seven keypad buttons with Integrated liquid crystal display
  • Operating pressure: 10-150 PSI (.7-10.5 BAR)
  • Temperature range: 14°F to +130°F (-10°C to +54°C)
  • Solenoid: 7-12 VDC, two-way latching, normally closed
  • Solenoid control orifice: .065" (1.65 mm)
  • Solenoid thread: 11/16"-12 UN male thread
  • Retractable solenoid wire: 8.1” (coiled length when extended, approximately 36")
  • Sensor connection: Normally Closed 6" (15 cm) yellow wire (16 AWG)
  • Adapter included: for Rain Bird, Hunter and Toro valves
  • Materials:
    • Controller housing: High-impact plastic
    • Solenoid housing: glass-reinforced nylon
    • Plunger & spacer: 430F stainless
    • Plunger rubber cap: EPDM
    • O-ring: Buna-N
    • RoHS

Programming Features

  • Custom programming schedules with a weekly calendar, odd days, even days, or intervals from one to thirty (1-30) days utilizing yearly calendar with leap year
  • Five start times per day
  • Durations up to 5 hours and 59 minutes in one-minute increments
  • Twenty preset historical ET programs available for 10 climate zones, with 10 for drip irrigation and 10 for spray heads, to use with any irrigation setup; includes the option to review the new calculated duration
  • Monthly seasonal adjustment with option to reduce the program duration setting to 0 or to increase it up to 200% in 5% increments without modifying the controller's program duration; also can be used to fine-tune the preset ET program for each month
  • Irrigation suspension for up to 99 days with auto-restart; resumes irrigation automatically
  • Program Off button allows the user to turn off the controller and reactivate it as desired
  • Manual On/Off button with semi-automatic feature utilizing the program runtime and shows the time left to run with quick override
  • Daily and monthly programming restriction feature allows controller to bypass irrigation schedules. Can be used to comply with city and municipal watering restrictions




Catalogs & Brochures

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    Battery and Solar Powered Controllers &Timers

Cut Sheets

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    LEIT-1 Cut Sheet

videos & articles


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    DIG ECO1 & LEIT 1 Solar Powered Controller: Programming

CAD details

CAD Files

Click here to download DIG Corporation's high quality design files for your next project.

  • [+]   LEIT-1 Ambient Light (solar) Controller
  • Leit-1
    TYPICAL LAYOUT DETAIL FOR 3/4" OR 1" ILV Thumb_2__leit_1__750-100_ilv PDF DWG DXF
    TYPICAL LAYOUT DETAIL FOR 1.5" OR 2" ILV Thumb_3__leit_1__150-200_ilv PDF DWG DXF
    TYPICAL LAYOUT DETAIL FOR 3/4" OR 1" ASV Thumb_1__leit_1_with_antisiphon PDF DWG DXF


Corporate Information

Where To Buy
Contact Us

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DIG Corporation
1210 Activity Drive
Vista, CA 92081 USA

Tel: (760) 727-0914
Fax: (760) 727-0282
Toll Free: (800) 322-9146

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DIG ECO1 & LEIT 1 Solar Powered Controller: Programming