If you've ever watched a live TV broadcast, you've seen tally lights in action — even if you didn't know what they were. That small red light on top of the camera? That's a tally light. It's one of the most fundamental pieces of communication in video production, and most independent creators don't have one.
This guide covers what tally lights are, how they work, the difference between hardware and software options, and how to get a working tally light for free today — without buying any dedicated hardware.
What Is a Tally Light?
A tally light is a visual indicator that tells talent (the person on camera) and camera operators which camera is currently live — meaning it's the one being broadcast or recorded. In a multi-camera production, this is critical. Without it, your presenter doesn't know where to look, your camera operators don't know whose shot is being used, and the whole production feels uncoordinated.
The word "tally" comes from broadcast production terminology. A "tally" signal was the electronic signal sent from a video switcher to a camera to indicate it was the active source. The light on the camera was just the most visible way to display that signal.
What Do Tally Light Colors Mean?
Different colors communicate different states:
| Color | Meaning | What talent should do |
|---|---|---|
| Red | Camera is live / on-air | Stay sharp, you're being broadcast |
| Green | Camera is in preview / next up | Get ready, you're about to go live |
| Amber | Standby / heads up | Pay attention, something is changing |
| Off | Not active | Camera is off, relax |
These conventions aren't universal — different production environments use different color meanings. What matters is that your whole team knows what each color means before you start.
How Do Tally Lights Work?
Traditional tally lights receive a signal from a video switcher — a device that switches between camera inputs. When the switcher cuts to Camera 1, it sends a tally signal to Camera 1's light, turning it red. When it cuts to Camera 2, Camera 2's light goes red instead.
This works well in a broadcast studio where everything is hardwired. But in modern production — church AV with volunteer crews, wedding videography, podcasting, live streaming — the wired approach is expensive and impractical.
Hardware tally lights cost $200–$600 per unit and only work on a local WiFi network. The moment your talent, guest, or second camera operator steps off that network — the tally goes dark.
Software Tally Lights: The Modern Alternative
Software-based tally systems replace dedicated hardware with devices that already exist — phones, tablets, and laptops. Instead of a $400 tally box, you open a browser tab.
The key advantage is internet connectivity. A software tally light can signal someone across the building, or across the world, without any local network dependency. This is what makes it practical for:
- Remote guests on Zoom or Riverside who need to know when they're live
- Church multi-site campuses where the remote location needs tally too
- Wedding videographers whose second shooter may be on cellular, not venue WiFi
- Live streamers with co-hosts in different cities
Tally Arbiter vs Browser-Based Tally
The most popular free software tally solution is Tally Arbiter. It's powerful and supports direct integration with vMix, OBS, ATEM, and other switchers. But it requires installing Node.js, running a local server, and configuring your network — typically 1–2 hours of technical setup for someone who's done it before.
Browser-based tally lights like Cue Light take a different approach: the director controls the tally manually (just like they would a cue light on a film set), and the signal goes out over the cloud to any device with a browser. Setup is 30 seconds. No server. No install. Works if the director's laptop is off — because the signal lives in the cloud.
Do You Need a Tally Light?
If you're shooting with a single camera and no talent who needs to know when they're live, probably not. But in almost any multi-camera or multi-person production, a tally light makes a real difference:
- Presenters look more professional when they know which camera to address
- Camera operators can coordinate without shouting across the room
- Remote guests stop talking over each other when they can see who's live
- Podcasters stop getting surprised when recording starts
Get a free tally light in 30 seconds
Open Cue Light on your phone. Share the QR with your team. Tap green. That's it — no hardware, no install.
Start free — no signup