RGB Neon Flex — 980m Stunning Prague Venue Case

Project Overview

RGB neon flex defined the entire visual signature of a 1,120 m² themed immersive bar and event hall in Prague’s Karlín district. Senfey supplied the full RGB neon flex package — built on our neon LED strip platform with a fully addressable pixel architecture — as the venue’s lighting centrepiece. The system spans a continuous sculptural pixel canvas across the entire ceiling, a fully addressable RGBW pixel wall behind the spirits display, and a continuous CRI90 COB ambient layer under the bar and bottle shelves. The venue runs a fully programmed nightly scene calendar synchronized to its music and event system, with the ceiling reading as one cohesive light surface across hundreds of pixels per square metre.

Project at a glance

• Venue type: 1,120 m² themed immersive bar & live-event hall
• Lighting scope: Sculptural ceiling pixel canvas + addressable backbar + COB ambient
• Total run: 980 metres across 3 strip product types
• Total pixel count: ~49,800 individually addressable pixels
• Color system: WS2814 4-wire RGB neon + SK6812 RGBW backbar
• Operating profile: 14 h / day, 7 days a week, full programmed scene calendar

Products Supplied

Project Challenges

1. Single sculptural canvas across 820 metres of ceiling

The ceiling is not a grid — it is a free-form sculpture of overlapping RGB neon flex waves, criss-crossing the full 35-metre length of the room. Every wave segment had to be pre-bent on a CNC sub-frame to a 1:1 architectural drawing, with no visible joints, no dark spots, and no kinking at the tightest 20 mm radius curves — the same sculptural discipline applied on our round neon flex office sculpture in Warsaw.

2. Pixel-perfect scene sync across ~49,800 pixels

The signature ceiling scene is a colour wave that propagates across the full venue in under two seconds. Any frame lag, IC dropout, or signal skew between controllers would have broken the gesture. Distributing many pixels across six controllers without measurable timing drift was the central technical risk — comparable in scale to our work on the Others

3. Single-batch colour match across two LED technologies

The ceiling uses WS2814 RGB neon flex and the backbar wall uses SK6812 RGBW pixel strip — different ICs, different chip suppliers, different phosphor formulations. Yet on every saturated colour scene, the two surfaces had to read as exactly the same red, blue, green, and white from any viewing angle.

4. Fog, CO₂, and 42 °C ceiling-level ambient

The venue runs nightly fog and CO₂ effects with ceiling-level air temperatures peaking at 42 °C during peak hours. Driver corrosion, connector oxidation, and thermal IC dropout were all serious risks for any product not rated for full-jacket IP67 and high ambient operation.

5. WS2814 4-wire reliability for public-venue serviceability

The ceiling is suspended at 6.5 metres, accessible only by scissor lift. A single failed pixel on a 3-wire IC would have caused all downstream pixels to go dark, requiring lift access mid-event. The brief required a topology that survives single-pixel failure without visible impact — the same robustness logic we applied to the addressable neon flex bridge at Riyadh KAFD.

Product Highlights

1. WS2814 4-wire IC — break-point continuous operation

SF-NEON-DMX-WS2814 uses the WS2814 4-wire protocol — if an individual IC fails, the downstream pixels continue to operate. The signature ceiling wave survives single-pixel failures invisibly, eliminating mid-event lift access for routine maintenance. Across 820 metres of RGB neon flex, this single feature is the difference between a viable nightly venue install and a serviceability nightmare.

2. Single-batch sourcing across both product types

All 820 metres of RGB neon flex and all 88 metres of SK6812 RGBW pixel strip were committed from one coordinated production order with batch-matched LEDs. The ceiling and backbar wall read as exactly the same red, blue, and green under any saturated scene — validated on site before sign-off.

3. IP67 silicone jacket, fog and condensation tolerant

The RGB neon flex uses an IP67-rated silicone outer jacket with welded end-caps, qualified under 96-hour salt-fog and condensation cycling. No milking, no yellowing, no jacket degradation under nightly fog operation.

4. Art-Net distribution with fibre backbone and hot-failover

Six SF-CTRL-ART-SPI-1024 controllers connect to the venue’s central media server via a fibre backbone with hot-failover. Scene refresh runs at 40 Hz across all 49,800 pixels with zero measurable inter-zone lag — the colour wave reads as a single continuous gesture across the full ceiling.

5. SK6812 RGBW with dedicated white channel for service mode

The backbar wall uses SK6812 RGBW with a dedicated W channel, giving a clean dimmed white for “service mode” without the muddy mixed white typical of RGB-only addressable strips. The bottle display reads naturally for clean-up shifts and product-photography sessions.

Result

Fabrication closed in eight weeks. On-site install ran across two weeks with scissor-lift access and overnight venue closures:

• Week 1, Days 1–4: CNC sub-frame, cable trays, Art-Net backbone, driver bay commissioning
• Week 1, Days 5–7: Ceiling RGB neon flex installation, sculpture-by-sculpture
• Week 2, Days 8–10: Backbar pixel wall + under-bar COB ambient
• Week 2, Days 11–14: Pixel mapping, scene programming, media server integration, hand-off

The venue opened on schedule and has run a full programmed scene calendar nightly since. Six months into trading, the system has logged zero dead pixels, zero driver swap-outs, and zero measurable colour drift between the ceiling and the backbar wall. Aurora Entertainment Group has briefed Senfey on their second venue, a 1,600 m² site in Brno, using the same RGB neon flex architecture at greater scale — joining our wider commercial case portfolio.