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Indoor-horticulture light control can mean a timer, a low-voltage 0–10V dimming controller, or a full environmental system. Match the controller to the fixture’s published control port and protocol; a 0–10V signal interface does not switch mains load. Do not exceed a device-station or circuit rating, mix incompatible fixtures on a control line, or alter mains wiring. Follow the fixture manual, local electrical code and use a qualified electrician for hard-wired or high-load work.
| # | Product | Price | Where to buy |
|---|---|---|---|
| 1 | TrolMaster Hydro-X HCS-1 | $320-$340 | Amazon · eBay |
| 2 | TrolMaster Hydro-X Pro HCS-2 | $2,400-$2,700 | Amazon · eBay |
| 3 | TrolMaster Hydro-X Plus HCS-3 | $700-$1,000 | Amazon · eBay |
| 4 | TrolMaster Tent-X TCS-1 | $298-$315 | Amazon · eBay |
| 5 | TotalGrow 1-Channel 0–10V Digital Lighting Controller | $170-$190 | Amazon |
| 6 | TotalGrow Digital Dimmer/Scheduler for HI-Top and Mult-HI | $110-$120 | Amazon |
| 7 | TrolMaster LMA-14 0–10V Lighting Adapter | $55-$70 | Amazon · eBay |
| 8 | TrolMaster LMA-14G Group Control Adapter | $55-$80 | Amazon · eBay |
| 9 | TrolMaster LMA-9 ThinkGrow 0–10V Adapter | $55-$80 | Amazon |
The picks, in detail

TrolMaster Hydro-X HCS-1
Single-zone environmental controller with two lighting channels; use the correct LMA adapter for the fixture protocol.
- 100–240 VAC input
- included temp/humidity/light sensor
- two lighting lines
- Modular full-controller platform
- Observed retail price
- Not a direct mains load switch

TrolMaster Hydro-X Pro HCS-2
Large touchscreen single-room controller that supports up to 50 sensors and 50 control modules, including lighting interfaces.
- 100–240V input
- 10-inch touchscreen
- 50 sensors and 50 modules
- Scales beyond a basic timer
- Independent environmental variables
- Requires compatible modules and fixture adapters

TrolMaster Hydro-X Plus HCS-3
Hydro-X Plus main controller for multi-group lighting through compatible TrolMaster lighting adapters.
- Hydro-X modular system
- up to 10 light groups
- app-connected platform
- More lighting-group capacity than entry HCS-1
- Supports modular sensor expansion
- Controller alone does not establish fixture protocol compatibility

TrolMaster Tent-X TCS-1
Single-zone tent controller with two light channels and an included temperature, humidity and light sensor.
- 100–240 VAC input
- 256 fixtures per channel
- two lighting channels
- Published two-channel fixture capacity
- Observed current retail price
- Needs LMA interface for many fixture types
TotalGrow 1-Channel 0–10V Digital Lighting Controller
Lighting-only controller with a temperature/RH probe, one 0–10V channel and a published maximum of 30 lights.
- one 0–10V channel
- temperature/RH probe
- 30-light maximum
- Dedicated lighting controller
- Observed price
- Confirm each fixture accepts 0–10V dimming
TotalGrow Digital Dimmer/Scheduler for HI-Top and Mult-HI
Lighting-only dimmer and schedule controller made specifically for TotalGrow HI-Top and Mult-HI fixtures.
- digital schedule
- dimming control
- TotalGrow HI-Top/Mult-HI compatibility
- Specific fixture-family integration
- Observed price
- Not a universal 0–10V controller

TrolMaster LMA-14 0–10V Lighting Adapter
Low-voltage interface module for Hydro-X or Tent-X, used to send 0–10V on/off and dimming control to compatible fixtures; not a standalone controller.
- 0–10V analog protocol
- Hydro-X/Tent-X interface
- adapter module
- Supports compatible major fixture brands
- Observed retail price
- Requires a TrolMaster main controller

TrolMaster LMA-14G Group Control Adapter
A Hydro-X interface for group-addressed 0–10V fixtures, with 12V input and 0.05A maximum current; not a mains controller.
- 0–10V protocol
- 12V input
- 0.05A maximum current
- Group addressing via display
- Made for Hydro-X Pro and Plus
- Accessory module only
TrolMaster LMA-9 ThinkGrow 0–10V Adapter
Interface that lets a third-party 0–10V controller command ThinkGrow LED strings on two separate control channels; not a standalone scheduler.
- two 0–10V channels
- ThinkGrow LED string interface
- 60mA input current
- Separates full-spectrum and supplemental-red control
- Published ThinkGrow-specific compatibility
- Only for ThinkGrow digital-light integration
Buying tips
- Read the fixture control-port specification before purchasing any controller or adapter.
- Keep fixtures of the same wattage and type on a TrolMaster lighting line as its manual requires.
- Use low-voltage control ports as specified; never use an adapter to bypass circuit, plug or load ratings.
As an Amazon Associate and eBay Partner, toptenpick.com earns from qualifying purchases. Prices and availability are subject to change.
