
What a Smart Junction Box Adds to an LED Run
A breaker per string, and a meter. Daisy chained fixtures normally share one panel breaker, so a single fault drops the whole run and nothing tells you which fixture caused it. This box puts an electronic circuit breaker on each LED string and reads power draw while it does. Input is 100 to 277V, 50/60 Hz.
Wiring It Into a Daisy Chain Power Cord Run
It sits inside the ThinkGrow daisy chain power cord system rather than replacing your panel. Fixtures plug into it, it plugs into supply, and the protection sits between them. Two things are being guarded. Overcurrent trips a string electronically instead of cooking a driver, and surge protection takes the spikes that come off contactors and utility switching. The monitoring side is the part growers underuse. It collects power consumption data on site. Paired with a Hydro-X Pro it logs that wirelessly, so you see draw per run rather than a whole-room meter. The unit weighs about 5 lbs and links to a TrolMaster controller over RS-485.
Key Features
- An electronic breaker per string: One faulty fixture trips its own string instead of dropping the whole run.
- 100 to 277V input: It sits on the same supply range as the fixtures it is protecting.
- Surge protection: Takes the spikes that come off contactors and utility switching.
- Power data on site: Read draw at the box rather than inferring it from a whole-room meter.
- Wireless logging with Hydro-X Pro: Draw per run over time, which is where a creeping driver fault shows up.
- RS-485 to TrolMaster: About 5 lbs, built for the ThinkGrow daisy chain cord system.
Technical Specifications
| Specification | Value |
|---|---|
| Brand | ThinkGrow by TrolMaster |
| Type | Monitored junction box for LED strings |
| Input Voltage | 100 to 277V, 50/60 Hz |
| Protection | Electronic circuit breaker on each LED string |
| Surge Protection | Included |
| Monitoring | Real time power consumption, on site |
| Logging | Wireless, with a Hydro-X Pro |
| Controller Link | RS-485 |
| System | ThinkGrow daisy chain power cord system |
| Weight | About 5 lbs |
| Store SKU | OPB-1 |