Sofa Headlights¶
Overview¶
Two car headlights on the back of a rolling sofa, used to emulate a car during the motorway sequence just before Martina's house. The practical is only used in Act 1 — it is flown out for Act 2 where it is plugged up on charge and switched off.
Internally it is powered off a 12V 22Ah lead acid battery, charged with a Victron 13 amp charger. Dimming is done by a City Theatrical QolorFlex dimmer, with CRMX received by a LumenRadio Moonlite.
Channels & Addressing¶
- Channels: 841–842
- Fixture Type: Dimmer
- Universe: 14
- Addresses:
- Ch 841: 14/1 (Headlight 1)
- Ch 842: 14/2 (Headlight 2)
- Label: MARTINA - HEADLIGHT
- Parameters: Intensity only (single channel dimmer per headlight)
Power & Control¶
| Power Source | Enduroline 12V 22Ah Lead Acid Battery |
| Circuit Protection | 30A inline circuit breaker → 6-way blade fuse box |
| Dimmer | City Theatrical QolorFLEX® 3x10A Dimmer (Legacy Product) |
| DMX Source | LumenRadio Moonlite CRMX Receiver |
| Charger | Victron Blue Smart IP65 Charger 12V 5A (in-built 13A tail) |
Charging Access
Charging tail and power switch are only accessible from the underside of the sofa — must be accessed when sofa is flown out in the storage cage.
Wiring¶
Power Flow¶
Power is supplied by the Enduroline 12V 22Ah lead acid battery, protected by a 30A inline circuit breaker straight from the battery. After the breaker there is the main power cut-off switch — this is also where the Victron charger feeds into the battery.
Following the switch is a 6-way blade fuse box used for positive line protection and negative distribution:
- 5A fuse → 12V to 5V USB step-down converter → charges the LumenRadio Moonlite (mounted slightly further away for less interference)
- 20A fuse → QolorFlex 3x10A dimmer → both headlights on separate dimmer outputs
Headlight Wiring
Each headlight has a 3-core cable: Brown = +12V, Blue = high beam, Earth = low beam. Brown connects to the dimmer's positive; blue and earth are connected together to the dimmer's negative.
Tip
The third dimmer output on the QolorFlex has cables plugged in but is not connected to any load — they terminate in empty Wagos.
DMX¶
Data to the QolorFlex dimmer is supplied by the LumenRadio Moonlite receiver via its built-in 5-pin DMX output, extended with a standard DMX cable into the dimmer's input.
Tip
The Moonlite is charged permanently via the in-built 12V to 5V USB converter — no need to disconnect it.
Images¶
Key Views¶
All Reference Photos (click to expand)
Components List¶
| Component | Detail |
|---|---|
| Battery | Enduroline 12V 22Ah Lead Acid |
| Dimmer | City Theatrical QolorFLEX® 3x10A (Legacy) |
| CRMX Receiver | LumenRadio Moonlite |
| Fuse Box | 6-way blade fuse box |
| USB Converter | SPCHKEY USB20W 12V to 5V DC-DC step-down |
| Charger | Victron Blue Smart IP65 12V 5A |
Usage¶
Used to simulate a car before Martina's house as car headlights (approx 10 seconds).