For business & developers

WLED in professional use

What makes an installation reliable, which documentation exists, which interfaces, and how LED-Emotion supports your project.

Project flow in five steps

Clarify requirements
Zones, effects, operation (staff, schedule, building services), network, environment.
Select components
Strip type and voltage, controller by outputs and connectivity, PSUs with headroom, profiles, injection plan.
Prototype
Build one zone in advance: check brightness, colour, heat, design presets.
Installation
Electrics by specialists, controllers onto the network (DHCP reservation, VLAN), load configuration.
Handover
Briefing, documentation (IP, pins, presets), backups, maintenance and update plan.

Recommendations for continuous operation

Connectivity	LAN instead of Wi-Fi: 4336-616 (pixel), 4336-611 (PWM), 4336-620 (both)
Switch-off	relay per output, strip unpowered when off (4336-616, 4336-116-RF)
Protection	fuse per channel, cross-sections by current; 4336-611 with factory 20 A fuse
Operation	presets on ESP-NOW remote or buttons, schedules
Maintenance	archive cfg.json and presets.json per device, test updates first
Environment	controllers IP20: dry, temperature range per datasheet (e.g. −20 to +45 °C)

For business

Licence: WLED is EUPL v1.2, commercial use allowed. Distributing modified firmware brings licence obligations. No licence or cloud costs.

Compliance & documents

As importer, LED-Emotion provides manuals, datasheets, safety and installation notes plus CE and RoHS documentation for the GLEDOPTO controllers. WEEE reg. no. DE31852878.

GLEDOPTO product documents All PDFs on wled.de

Interfaces and protocols

Interface	Use	Endpoint / Port
JSON / HTTP API	read and set state, presets, segments	/json/state, /json/info
WebSocket	live state for UIs	ws://host/ws
MQTT	building services, HA discovery	<topic>/api
UDP Sync	between WLED devices	21324
ESP-NOW	sync and remote without router	–
E1.31 · Art-Net · DDP · TPM2.net	real time from desk or software (xLights, Hyperion)	Realtime
DMX serial	DMX input from version 16	–
Alexa	local voice control	–

Set an effect

curl -X POST http://wled-theke.local/json/state \
  -H "Content-Type: application/json" \
  -d '{"on":true,"bri":160,"seg":[{"id":0,"fx":9,"pal":11}]}'

fx = effect ID, pal = palette ID; lists at /json/effects and /json/palettes.

Recall preset 3

curl -X POST http://wled-theke.local/json/state -d '{"ps":3}'

Status and current estimate

curl http://wled-theke.local/json/info

For developers

Always take the pinout from the datasheet. Examples: 4336-116-RF data IO2/IO16, relays IO21/IO19, PDM mic SD IO32/WS IO15, button IO17. 4336-611 PWM IO18/16/12/4/2, extra GPIO IO13, button IO17.

Sources: README · kno.wled.ge · Release 16.0.0

Network and security

WLED runs locally without a cloud. The web UI uses unencrypted HTTP on the LAN. So: own network segment, no port forwarding to the internet, remote access via VPN only.

On every device change the hotspot password, set a settings PIN and update protection. The classic ESP32 only uses the 2.4 GHz band.

Support and custom solutions

WLED basic support

Connection, setup, first effects, introduction. Typically 30, at most 60 minutes. For private customers and small projects.

€59.50

WLED 2nd-level support

For larger installations and tricky faults.

€416.50

WLED expert / priority support

For projects with tight deadlines and complex integration.

€892.50

LED-Emotion also develops custom controls: simulations for fairs and exhibitions, 1D, 2D and 3D effects, industrial applications with PLC integration.

Contact

LED-Emotion GmbH · Hannoversche Str. 39a · 31275 Lehrte
Advice: +49 5132 8305530 (Mon–Fri 9 am–4 pm CET) · info@led-emotion.de