Glossary
LED & Lighting Glossary
| Term | Definition |
|---|---|
| Addressable LED | LED with built-in driver IC; each pixel has its own address |
| Art-Net | Royalty-free DMX-over-Ethernet protocol |
| CCT | Correlated Color Temperature (measured in Kelvin) |
| COB | Chip on Board — many LED dies in one package |
| CRI | Color Rendering Index — how accurate colors appear |
| DALI | Digital Addressable Lighting Interface — building lighting standard |
| DDP | Distributed Display Protocol — low-latency pixel protocol |
| DMX512 | Digital Multiplex 512 — stage lighting protocol |
| Duv | Delta uv — green/magenta tint of white light |
| E1.31 | sACN (Streaming ACN) — ANSI DMX-over-IP standard |
| ESP32 | Popular microcontroller for LED control (WiFi + BLE) |
| FastLED | Arduino library for controlling addressable LEDs |
| FPP | Falcon Pi Player — show playback software |
| GDTF | General Device Type Format — fixture profile format |
| HUB75 | Standard interface for RGB LED matrix panels |
| I2S | Inter-IC Sound — digital audio interface |
| IC | Integrated Circuit — the driver chip in a pixel LED |
| IGMP | Internet Group Management Protocol — needed for sACN |
| IPxx | Ingress Protection — dust/water resistance rating |
| LED | Light Emitting Diode |
| Li-Fi | Light Fidelity — data transmission via LED light |
| Matter | Smart home interoperability standard (CSA) |
| MiniLED | Small LEDs used as backlight in LCD displays |
| MicroLED | Self-emissive LED display technology |
| MQTT | Message Queuing Telemetry Transport — IoT protocol |
| nDisplay | Unreal Engine multi-viewport renderer for LED walls |
| NeoPixel | Adafruit’s brand name for WS2812B LEDs |
| NRZ | Non-Return-to-Zero — single-wire data encoding |
| OLED | Organic LED — emissive display technology |
| OPC | Open Pixel Control — protocol for pixel data |
| Pixel | An individual addressable LED |
| PSU | Power Supply Unit |
| PWM | Pulse Width Modulation — dimming method |
| QD-OLED | Quantum Dot OLED — Samsung’s emissive display tech |
| QLED | Quantum Dot LED — Samsung’s LCD-based TVs |
| RDM | Remote Device Management — bidirectional DMX |
| RGB | Red Green Blue — color model |
| RGBW | RGB + White channel |
| RGBCCT | RGB + Warm White + Cool White (tunable) |
| sACN | Streaming ACN — see E1.31 |
| SELV | Safety Extra Low Voltage (<60V DC) |
| SPI | Serial Peripheral Interface — 2-wire (clock + data) |
| TLCI | Television Lighting Consistency Index |
| TM-30 | IES color rendering standard (Rf + Rg) |
| TPM2 | Texas Pixel Mapping protocol |
| Universe | 512 DMX channels |
| VCSEL | Vertical-Cavity Surface-Emitting Laser |
| WLED | Popular open-source LED control firmware |
| xLights | Free holiday light show sequencer |
More terms available in the full research documents.