Project Overview
Senfey was commissioned to supply the signature lighting for a Ploom brand experience pop-up at a commercial complex in Roppongi, Tokyo. The centerpiece is a tunnel of five sequential black-framed arches lined with brand-red red neon flex LED, drawing visitors from the street-side entry through to the central bar and product display. A secondary COB LED strip layer washes the rear feature wall behind the Ploom logo, creating the saturated red ambient that defines the entire space. The brief demanded exact brand-red color matching, perfectly even illumination across all five arches viewed in one sightline, and a fast, low-risk on-site install during a tight overnight tenancy window.
Products Supplied
| Model | Type | Specification | Quantity |
|---|---|---|---|
| SF-NEON-SF1612-24V-IP65 | Top-Bend Silicone Neon Flex | Monochrome Red 625 nm, 8 W/m, 16 mm bend radius, IP65 | 42 m |
| SF-COB480-24V-CRI90-IP20 | COB LED Strip | Red, 480 LEDs/m, 10 W/m, dot-free linear emission | 12 m |
| SF-CTRL-DMX512-4CH | DMX Decoder | 4 channels, 16-bit PWM, smooth low-end dimming | 2 pcs |
| SF-PSU-150W-24V-IP20 | LED Power Adapter | 150 W, 24 V DC, indoor Class-2, fan-less | 4 pcs |
Project Challenges
The arches are read as a single composition from the entry — any CCT drift, intensity variation, or color shift between segments would be immediately visible to anyone standing at the doorway. The brand red also had to align with Ploom’s identity color across both the neon outline and the rear wall wash, despite the two using different LED technologies (neon flex vs. COB). The architectural arch geometry required the neon to negotiate a 90 mm corner radius at the floor-to-vertical transition without kinking or producing a hot spot. Finally, the venue’s overnight install window was just over six hours, with zero tolerance for on-site soldering or trimming — every segment had to be plug-and-play.
Product Highlights
SF-NEON-SF1612 uses a top-emitting silicone profile with a true 16 mm bend radius, so the floor-up curve of each arch was a single continuous run with no visible joints or dark zones. All 42 m of neon was cut from a single LED bin, holding the dominant wavelength within ±2 nm so the five arches read as identical brand red. The matching COB rear-wash strip was specified at the same dominant wavelength, giving a seamless color blend between the linear arch outline and the diffuse wall ambient. Every segment was pre-cut to architectural drawing, pre-soldered, and labelled per arch position, allowing the install crew to complete the entire tunnel without a soldering iron on site. The DMX decoder’s 16-bit PWM kept the brand’s signature slow “breathing” scene smooth down to 5% output, with no visible stepping under camera.
Result
Fabrication closed in three weeks. On-site install and commissioning was completed in a single overnight session of under five hours, well inside the venue’s tenancy window. The pop-up opened on schedule and ran its full eight-week activation with zero lighting service calls. The client has since standardized the same arch lighting kit across two additional Ploom regional roadshow stops in Osaka and Nagoya. For a comparable immersive neon installation in a hospitality setting, see our Prague cocktail lounge neon ceiling case, or browse more commercial lighting projects.
