Basics

LED Cabinet (Panel)

An LED cabinet (also called a panel) is the primary structural unit of an LED video wall, containing multiple LED modules, power supplies, receiving cards, and the frame/housing. Cabinets connect together using quick-lock mechanisms to form larger displays. Standard cabinet sizes include 500x500mm, 500x1000mm, and 600x337.5mm.

Understanding LED Cabinets

LED cabinets are the fundamental building blocks that technicians handle, transport, and assemble. Understanding cabinet construction and specifications is essential for proper system design and operation.

Cabinet Components

**Frame/Housing:** The structural enclosure:

  • Aluminum or magnesium alloy
  • Die-cast for precision
  • Handles for carrying
  • Mounting points for rigging

**LED Modules:** The pixel-bearing components:

  • Multiple modules per cabinet
  • Field-replaceable
  • Connected via ribbon cables

**Power Supply:** Converts AC power to DC for LEDs:

  • Typically 4.2V-5V output
  • Sized for panel power draw
  • May be redundant in critical applications

**Receiving Card:** Controls the LED modules:

  • Receives data from processor
  • Drives module refresh
  • May support multiple modules

**Connectors:** Power and data interfaces:

  • Power input (often PowerCON or proprietary)
  • Data input (typically RJ45 or fiber)
  • Loop-through outputs for daisy-chaining

Cabinet Types

**Rental/Touring:** Designed for repeated assembly:

  • Quick-lock mechanisms
  • Robust construction
  • Protective corners
  • Flight case compatible

**Fixed Installation:** Optimized for permanent mounting:

  • Lighter weight possible
  • Front or rear service
  • Various mounting options

**Outdoor:** Weatherproofed construction:

  • IP65 or higher rating
  • Sealed connectors
  • Enhanced cooling
  • UV-resistant materials

Standard Sizes

**500x500mm:** Most common rental size:

  • Easy math for wall dimensions
  • Widely compatible
  • Good balance of weight/size

**500x1000mm:** Larger format:

  • Fewer seams
  • Faster installation
  • Heavier per unit

**600x337.5mm:** 16:9 optimized:

  • Matches content aspect ratio
  • Less common
  • Manufacturer-specific

Quality Indicators

**Flatness:** Cabinet-to-cabinet alignment affects image quality:

  • Premium panels: <0.1mm tolerance
  • Standard panels: <0.5mm tolerance
  • Poor flatness causes visible seams

**Lock Mechanism:** Quick-lock quality affects:

  • Assembly speed
  • Alignment consistency
  • Long-term reliability

**Thermal Design:** Heat management:

  • Adequate ventilation
  • Fan quality and noise
  • Operating temperature range

Handling and Transport

**Flight Cases:** Proper cases protect investment:

  • Custom foam inserts
  • Stack multiple panels
  • Include spares compartment

**Weight Distribution:** For rigging calculations:

  • Know weight per cabinet
  • Account for cables and rigging hardware
  • Apply appropriate safety factors

Frequently Asked Questions

What is a standard LED cabinet size?

500x500mm is the most common size for rental/staging applications due to easy math and compatibility. 500x1000mm (half-meter by one-meter) is popular for larger installations. Some manufacturers use 600x337.5mm for 16:9 aspect ratio compatibility. There is no universal standard—different products use different sizes.

How heavy is an LED cabinet?

Weight varies significantly by product: indoor rental panels typically weigh 7-12 kg per 500x500mm cabinet. Fine-pitch panels can be heavier (10-15 kg) due to denser construction. Outdoor panels are heaviest at 15-30+ kg due to weatherproofing. Always verify weight for rigging calculations.

Can I mix cabinets from different manufacturers?

No. Cabinet dimensions, locking mechanisms, power connections, and data protocols are proprietary to each manufacturer (and often to each product line). Even panels with the same pixel pitch from different brands cannot be mixed. Stick to one product for each wall.

Related Terms

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