Which smart lights actually work with SimHub
Last updated · SimHub 9.11.22
SimHub can drive five kinds of ambient light: Adalight-compatible DIY strips, Bluetooth flood lights running the Happy Lighting app, Govee Dreamview models, Philips Hue through a bridge in entertainment mode, and Razer Chroma. Each carries a hard limit that decides whether it suits you: Govee tops out at 10 independent segments per device and demands exclusive control, Hue allows 12 lights per entertainment area and needs the area configured in the Hue app first, Chroma exposes only the 5 areas the manufacturer defined and has higher latency than direct control, and Bluetooth flood lights need a BLE-capable PC with the phone disconnected. Adalight is the only one with no ceiling imposed by somebody else, which is why it stays the answer for anyone who wants exact control.
Most "my lights don't work with SimHub" threads are really a mismatch between what somebody bought and what that product can do. This is the comparison, with the limits stated rather than implied.
The five, and what each one costs you
| System | What it needs | Hard limit | Best for |
|---|---|---|---|
| Adalight (DIY) | An addressable strip — WS2812B and similar — driven by a microcontroller over USB | None imposed by a vendor. You are limited by power and by your own wiring. | Anyone who wants exact control and the lowest latency, and does not mind soldering. |
| Govee | A Dreamview-compatible model, LAN control on, same home WiFi, nothing else controlling it | 10 independent segments per device | A tidy off-the-shelf strip behind the monitors, if you already own one |
| Philips Hue | A bridge, and an entertainment area configured in the Hue app first | 12 lights per entertainment area | A room that is already on Hue — reusing bulbs you have |
| Razer Chroma | Chroma Link compatible external lights | 5 areas, defined by the manufacturer, not by you. Higher latency than direct control. | A desk already full of Razer kit |
| Bluetooth flood lights | Happy Lighting app compatible, a BLE-capable PC or a dongle, phone disconnected | Bluetooth range and the phone-must-disconnect rule | Cheap wall wash behind the rig |
The common thread. Four of the five are consumer smart-home products that were designed to be driven by their own app, and SimHub is borrowing an interface. That is where every limit in this table comes from. Adalight is the exception because there is no vendor in the middle.
What SimHub actually sends
SimHub computes the average colour of a screen area and sends it to each light area — that is what "ambient light" means here. It is not a per-pixel mirror of the screen, and it is not a telemetry effect by default.
You can mix or replace those colours with direct effects — flags, spotter, and the rest of the LED editor's repertoire. That combination is the point: the strip washes the wall with whatever the screen is showing, then goes hard yellow when a yellow is out.
Segments are not LEDs. A strip advertised with 60 addressable zones does not give you 60 SimHub areas. Govee gives you 10, Chroma gives you 5, Hue gives you one per light up to 12. If a plan depends on fine spatial resolution — a spotter light that shows exactly where a car is rather than which side — none of the vendor integrations will do it and you want Adalight.
Choosing without buying twice
- If you already own one of these, use it — the ceilings above are limits, not deal-breakers, and ambient wash does not need many segments.
- If you are buying for ambient light only, any of them is fine and Govee or Hue are the least work.
- If you are buying for effects — flags, spotter, shift lights on the strip — go Adalight. Five areas will not carry it.
- If latency matters to you, Adalight over USB is the direct path and everything else is going over WiFi, Bluetooth or a vendor SDK.
One thing worth saying plainly: none of these replaces a dedicated shift-light unit sitting in your eyeline. Ambient light is peripheral by design, and a strip behind a monitor is not where you want your shift point.
Common questions
Does SimHub work with Govee?
Yes, since 8.3.0, on Dreamview-compatible models with LAN control enabled, on the same WiFi, and with nothing else controlling the device. It exposes at most 10 independent segments per device.
How many Hue lights can SimHub control?
Twelve per entertainment area, and the entertainment area has to be configured in the Hue mobile app before SimHub can use it. SimHub does not create the area for you.
Why does Razer Chroma only give me five zones?
Because Chroma Link exposes five areas and the manufacturer defines them, not you. That is a limit of the Chroma integration rather than of SimHub, and the wiki also notes latency on this path may be higher than on direct control.
What is Adalight?
A simple, long-established protocol for driving an addressable LED strip from a PC over a serial connection. In practice it means a WS2812B strip on a microcontroller, which is why it has no vendor-imposed ceiling on areas — you define them.
Do Bluetooth lights need anything special?
A PC with Bluetooth Low Energy, or a BLE dongle, and the phone has to disconnect from the light first. The lights that work are the ones driven by the Happy Lighting app.
Which has the lowest latency?
Adalight, because it is a direct serial link with no vendor cloud, app or SDK in the path. Everything else goes over WiFi, Bluetooth or a manufacturer's API, and the wiki singles Chroma out as likely higher than direct control.
Sources
Related guides
SimHub is developed independently by Wotever and is not affiliated with OESimRacing. This page was checked against SimHub 9.11.22 on 4 August 2026; where the interface has moved on since, the version stamp tells you how far. More on what SimHub is and what it costs.