The Telos Growcast is a wireless lighting controller that plugs into the 0–10 V dimming port found on most grow light drivers and gives you precise output control, scheduling and sunrise/sunset ramping from your phone. It runs on its own encrypted mesh network with no internet involved, and one unit can hold up to 50 lights on the same program — which is where it earns its place in a multi-light room.
Set the output, not just the on/off
A mechanical timer switches a light on and off. Growcast sets how hard it runs: dial in the PPF output you want and it holds it, with on/off timing schedules and an optional sunrise and sunset ramp at each end of the cycle. The app also displays the light reaching your canopy as PPFD, which makes matching output to growth stage a considered decision rather than a guess at a percentage.
Setup is plug and play — it connects directly to the existing dimming port on the driver, and it ships with both Type 1 and Type 2 RJ11 cables so the common driver wiring conventions are covered in the box.
Local mesh, no cloud dependency
Programming happens over the encrypted Telos Mesh app on Android or iPhone and lives on the device. There is no account, no cloud service and no internet connection required — which means nothing to fail when your router does, and nothing to stop working if a service is retired. The mesh is decentralised, so the lights relay to each other across a larger room rather than all needing to reach one hub.
Growcast or an AC Infinity lighting adapter?
If you already run an AC Infinity controller, a Type-A, Type-B or Type-D adapter brings the light under the same programs as your fans and humidifier for a fraction of the price — and that integration is usually the better answer for a single tent.
Growcast makes sense when lighting is the thing you want controlled properly and the rest is not on a UIS controller: a room full of lights from one or several brands, a setup where you want PPFD figures and fine output control, or a build with no AC Infinity gear in it at all.
Specifications and documents
| Product identification | |
| Brand | Telos (not an AC Infinity product) |
| Product name | Growcast Controller |
| Performance and technical | |
| Connection to light | 0–10 V dimming port, RJ11 |
| Lights per controller | Up to 50 |
| Control | PPF output level, on/off schedules, sunrise and sunset ramping |
| Readout | PPFD at canopy, in app |
| Network | Decentralised encrypted mesh, no internet required |
| App | Telos Mesh, Android and iPhone |
| Included cables | Type 1 and Type 2 RJ11 |
| Documentation | |
| Quick start guide | |
| User manual | |
| Datasheet | |
FAQ
Will it work with my light?
If the driver has a 0–10 V dimming port, almost certainly — that covers most current LED fixtures, and both common RJ11 cable types are in the box. Telos maintain a compatibility list that is regularly updated. Send us the light model and driver part number and we will check it before you buy.
Does it work with an AC Infinity controller?
No — Growcast is a separate system with its own app and mesh, and it does not join the UIS platform. If UIS integration is what you want, a Type-A lighting adapter is the part that puts a 0–10 V light under an AC Infinity controller instead.
Does it need WiFi or an account?
Neither. Programming happens over a local encrypted mesh from the Telos app and stays on the device. Nothing routes through a cloud service, so there is nothing to break when your internet does.
Can one controller run lights on different schedules?
Up to 50 lights can sit on one controller, running its programming. If you need genuinely separate schedules for different areas, plan on a controller per area.
Is the PPFD figure measured or calculated?
It is derived from the light's known output at the level you have set, so it is a very useful working figure rather than a reading from a quantum sensor in your tent. Treat it as an accurate guide to what you are delivering, and use a meter if you need certified measurements.