Battery-Powered Lighting Fixtures: Batteries, CRMX, and Mobile Control
Quick Answer
Professional battery-powered lighting fixtures rely on lithium-ion batteries rated for roughly 300 to 500 charge cycles before losing 20% capacity. Control runs over the LumenRadio CRMX protocol, which delivers reliable wireless DMX using automated frequency hopping. Manufacturer mobile apps let tech crews set DMX addressing, monitor battery levels, and generate gradient effects without needing a dedicated lighting console.
Overview
An engineering overview of battery-powered lighting technologies. This guide covers lithium battery architecture, CRMX wireless control protocols, mobile app configuration workflows, and selection criteria for event lighting hardware.
Target Audience
- •Lighting designers and console operators
- •Rental companies working corporate events
- •Gaffers and film lighting technicians
- •Event technical directors
Key Takeaways
- •How to preserve lithium-ion battery lifespans in production fixtures
- •How LumenRadio CRMX wireless signal transmission works
- •Workflows for integrating mobile apps like AsteraApp on set
- •Calculations for battery runtime based on output power levels
Introduction
Shooting inside a historical venue often prohibits laying power cables or DMX lines across the floor. Imagine deploying 24 Astera Titan Tubes for a 10-hour shoot where you need synchronized color temperature control and gradient chases throughout the day. Battery fixtures paired with CRMX wireless control solve cable routing problems, but they require a clear understanding of battery management algorithms and wireless signal routing.
Battery Tech and Power Management
Most professional wireless fixtures use lithium-ion (Li-ion) batteries. They deliver high energy density without the memory effect common in older NiMH chemistry.
The core engineering challenge comes down to maintaining runtime. LED engines generate heat, which alters battery internal resistance as internal temperatures rise. Advanced fixtures include an internal battery management system (BMS). This controller actively limits LED drive power (thermal derating) if the battery drains too quickly or ambient temperatures spike.
Professional fixtures let operators target a specific runtime like 8 hours. The fixture's internal logic calculates the maximum safe LED output power via PWM to guarantee continuous operation without sudden shutoffs.
Wireless DMX: The CRMX Protocol
Wireless reliability is mandatory on professional productions. Basic wireless DMX systems rely on unmanaged 2.4 GHz radio bands that congest quickly when venue attendees turn on mobile devices.
LumenRadio CRMX serves as the industry standard for wireless control. Its Cognitive Coexistence engine scans the 2.4 GHz spectrum 1,000 times per second to detect Wi-Fi and Bluetooth interference. It automatically shifts data packets to clean frequencies via frequency hopping.
CRMX keeps signal latency under 5 ms. That low latency lets you synchronize strobes and pixel-mapped effects across hundreds of fixtures at once.
Mobile Apps and Fixture Setup
Mobile apps like AsteraApp change how crews prep lighting setups. Instead of clicking through menu displays on every fixture to set DMX addresses, technicians configure fixtures over Bluetooth.
The app communicates with a hardware gateway like AsteraBox, which relays commands to fixtures over RF link. Key app capabilities include:
- •Addressing and grouping: Assign DMX addresses and operating modes to fixture arrays in seconds.
- •Battery monitoring: Track charge status, internal temperature, and RF signal strength for every unit.
- •Effect generation: Run color sweeps, chases, and gradients directly without a physical console.
- •Color tuning: Dial in color temperature adjustments and Green/Magenta tint offsets for camera work.
Common Mistakes
- 1.Storing drained batteries. Leaving fixtures fully discharged for months degrades lithium-ion chemistry. Store units at 50% to 70% charge state.
- 2.Poor transmitter placement. Setting a CRMX transmitter inside a metal rack case on the floor kills signal strength. Mount antennas high on stands with line of sight to receivers.
- 3.Running at 100% output continuously. Maxing out brightness drains batteries quickly and causes heat buildup in LED modules. Use runtime scheduling features instead.
- 4.Using budget Wi-Fi routers. When sending Art-Net to a CRMX gateway over weak local network gear, packet loss happens before the signal ever reaches the wireless transmitter.
Best Practices
- 1.Manage charge cycles. Avoid running battery fixtures down to 0%. Recharging from 20% to 80% extends total battery service life.
- 2.Update firmware. Keep fixture and transmitter firmware up to date. Manufacturers update battery algorithms and RF protocols regularly.
- 3.Use fixture profiles. Load valid GDTF profiles into your lighting console. This guarantees accurate color mixing across RGBW and RGBA parameters.
- 4.Maintain weather seals. Inspect rubber port covers before outdoor deployment. IP65 fixtures lose water resistance if charging ports remain open.
Selection Matrix
| Criterion | LED Tubes (Titan Tube) | Battery PARs | Battery Panels |
|---|---|---|---|
| Optics | 180° diffuse light | Narrow or medium beam | Wide flood illumination |
| Primary use | Film sets, photo zones, stage sets | Wall and column uplighting | Work lighting, key fill |
| Pixel control | Multi-zone pixel mapping | Single pixel output | Model dependent |
| Mounting options | Horizontal or vertical rigging | Floor placement | C-stand or truss mount |
ART-R Recommendations
- •[ASTERA](/brands/astera) Titan Tube / Helios Tube: Industry benchmark for battery tube lighting. Excellent for pixel effects and set practicals, featuring CRI > 96 color rendering and integrated CRMX receivers.
- •ASTERA AX9 PowerPAR: Powerful battery fixture for architectural uplighting. Fits facade and ballroom applications where running power cables is impossible.
- •Wireless infrastructure: Use genuine LumenRadio transmitters or ASTERA ART7 controllers to keep wireless DMX transmission solid.
Frequently Asked Questions
How long does an Astera Titan Tube take to charge?
A full charge cycle takes about 3 hours using the standard charging case.
Can you run battery fixtures while charging?
Yes. Fixtures run on AC power while charging the internal battery, though charge speed may decrease depending on thermal management.
How many fixtures fit in one CRMX universe?
One transmitter sends one DMX universe (512 channels). Total fixture count depends on your DMX profile. If a tube uses 64 channels, one universe holds 8 tubes.
How do you recalibrate the battery indicator?
Some fixtures require a battery calibration run twice a year: charge to 100%, then discharge to 0% continuously. This recalibrates the BMS remaining capacity readout.
Are different wireless DMX generations compatible?
CRMX protocol generations (Classic, Nova, G2) maintain backward compatibility for basic DMX. Advanced features like wireless RDM require matching protocols across transmitters and receivers.
What is wireless RDM?
Wireless RDM lets lighting consoles read data back from fixtures (battery levels, temperatures, DMX addresses) over the same RF link without extra cabling.
How do you replace an internal battery?
Battery replacements on IP65-rated fixtures should happen at authorized service centers to keep water seals intact.
Related Topics
- •Setting up AsteraApp on tablets
- •Understanding PWM frequency and camera flicker
- •Using GDTF profiles with Astera fixtures
- •Battery lifespan expectations across charge cycles
- •Operating battery fixtures in wet conditions
Related Articles
- •Як обрати рухому голову для вашого майданчика
- •Як сформувати специфікацію сценічного обладнання для тендерів та проектів
- •Генеральний підсумковий посібник з інтеграції сценічних технологій ART-R
- •Як сформувати бюджет та інвестиційний план оновлення парку обладнання рентал-компанії
Related Categories
Downloads
- •AsteraApp setup guide (PDF)
- •Titan Tube GDTF profiles
- •Li-ion battery care guide (PDF)
Glossary
| Term | Definition |
|---|---|
| CRMX | LumenRadio wireless DMX transmission protocol |
| BMS | Battery Management System for cell protection and monitoring |
| Thermal derating | Automatic power reduction to prevent LED overheating |
| Pixel mapping | Individual control over multi-segment lighting zones |
Summary
Battery lighting fixtures eliminate cable runs during tight event turnarounds and complex location shoots. Pairing lithium-ion batteries with CRMX wireless DMX and tablet control apps creates an adaptable workflow for events and film sets. Managing battery thermal limits and RF transmitter placement ensures reliable operation on every show.
Schema Recommendation
- •
Articlefor core page structure - •
FAQPagefor Q&A section - •
Productfor Astera Titan Tube references
Image Recommendations
- 1.Hero image: Production set with dozens of Astera Titan Tubes running completely wireless.
- 2.Signal diagram: Signal path from console to CRMX transmitter, RF link, and receiver fixtures.
- 3.Battery curve: Graph showing lithium-ion capacity retention over 500 charge cycles.
- 4.App screenshot: AsteraApp interface showing fixture group addressing and status monitoring.
- 5.RF diagram: Visual explanation of CRMX frequency hopping in crowded Wi-Fi environments.