The sculpture lighting for “A Sky Full of Hope”, the suspended net by Janet Echelman above Frankfurt’s Konstablerwache, pairs lighting design by TLD Planungsgruppe with 24 Cameo ZENIT W600 G2 IP65 wash fixtures. All 24 sit on the four pylons that carry the net, which turns a piece of public art into a permanent outdoor lighting installation rather than an overnight event rig.
The work, titled in full “A Sky Full of Hope – Earthtime 1.78 Frankfurt”, was shown lit for the first time on 11 August 2026 at 20:45, as part of the World Design Capital Frankfurt RheinMain 2026 programme. It has occupied the airspace above the square ever since, with a colour palette that, according to the project description, refers to the 178 nations represented in Frankfurt and seeks a balance between warm and cool tones. Cameo presents it as the artist’s second permanently installed work in Europe, after Porto, although the permanence announced for the Konstablerwache is for now limited to an initial three-year period.
Sculpture lighting as part of the work, not an addition to it
The division of responsibilities is worth keeping straight. Janet Echelman is the author of the sculpture; TLD Planungsgruppe, a studio specialising in lighting design and multimedia planning, handles the lighting; Neumann & Müller supplied the equipment as material partner; and Cameo is the manufacturer of the fixtures used.
That separation of roles explains the technical approach. In large-format sculpture lighting, the light does not strike an opaque object: it passes through and bounces off a translucent net whose density changes with every fold and every viewing angle, so the intended result is not a uniform wash but a continuous gradient. TLD had already faced that problem with the same artist: in 2021 it staged “Earthtime 1.26 Munich” on Munich’s Odeonsplatz for IAA Mobility, also resolved from four pylons.
Twenty-four ZENIT W600 G2 spread across the four pylons
The Konstablerwache installation uses 24 Cameo ZENIT W600 G2 LED wash fixtures rated IP65, distributed across the four pylons that anchor the net itself. The project documentation does not break down how many fixtures sit on each pylon, nor which control system is used.
Placing the fixtures on the pylons rather than under the net governs everything that follows. Sculpture lighting for suspended work therefore calls for long throws and grazing angles, keeps the fixtures reachable from a fixed position and concentrates maintenance at four points — decisive when the installation is not struck at the end of the day.
Colour rendering and dimming curve for gradients without seams
The selection criterion for the fixture was not output but colour behaviour and dimming. This is the point at which sculpture lighting parts company with stage work: there is no performer to define here, only the problem of making twenty-four point sources read as a single mass of light.
“We know the particular demands that Janet Echelman’s work places on lighting technology: the colour gradients have to look soft and organic without the individual fixtures being perceived as light sources. With the ZENIT W600 G2 we were especially impressed by the colour rendering and the dimming curve, and that makes the difference with transitions as subtle as this sculpture needs.”
Alexander Orkisch, senior project manager at TLD Planungsgruppe
Factory figures and site behaviour are worth keeping apart. The manufacturer credits the ZENIT W600 G2 with an RGBALC engine, CRI 98, TLCI 95 and IP65 protection: these are catalogue values from the official product page, not measurements taken at the Konstablerwache. What the project team describes is the effect they were after — a progressive dim, of intensity rather than beam angle, that allows one tone to cross into another without visible steps across the mesh.
A rental inventory prepared for a long-duration installation
Neumann & Müller had added the ZENIT W600 G2 to its rental inventory shortly before, and it was the company that supplied the equipment for the build. Sculpture lighting intended to stay in place imposes a different calculation on a rental company than an event does: the kit is tied up for years, outdoors and in full public view.
“Lighting a work of this scale in public space is something other than a classic event. Every nuance counts here, and the result stays visible for years.”
Yvonne Schwarz, director of Event Stuttgart at Neumann & Müller
For sculpture lighting left out in the weather, an IP65 rating means dust tightness and protection against water jets, not immersion or immunity to any weather condition, so a maintenance plan is still required: the three years announced are a programming horizon, not a guarantee of service without inspection. The same logic governs other professional lighting projects with equipment left outdoors, and it shaped the way Cameo fixtures were specified for the Roquefort Société cellars, another permanent installation where the fixtures live in conditions a touring rig never sees. The artistic context of the piece is set out on the official project page.
From the stage to the public realm
Outdoor sculpture lighting brings together conditions that rarely meet in a single commission: studio-grade colour fidelity, fine dimming, environmental resistance and a service life measured in years rather than in show days. Frankfurt leaves a documented case of how those demands get shared out between designer, equipment supplier and manufacturer.
Cameo is the lighting brand of Adam Hall Group, the German manufacturer and distributor of event technology. Its ZENIT series groups the IP65 fixtures aimed at outdoor use, a catalogue of equal interest to lighting designers, rental companies and integrators working with exposed installations who need colour behaviour to stay predictable outside the controlled environment of a venue. Instalia covers this territory in more depth in professional LED lighting.
What is sculpture lighting in a permanent outdoor installation?
Sculpture lighting is the lighting design of a three-dimensional artwork as part of the piece itself. In a permanent outdoor installation it has to combine accurate colour rendering, fine dimming and an IP rating suited to the weather, because the fixtures stay in position for years instead of being struck after a show.
How many Cameo ZENIT W600 G2 light “A Sky Full of Hope”?
24 Cameo ZENIT W600 G2 IP65 LED wash fixtures light the work, distributed across the four pylons that anchor Janet Echelman’s net above Frankfurt’s Konstablerwache.
Frankfurt turns sculpture lighting into a long-term technical brief
“A Sky Full of Hope” shows what changes when sculpture lighting stops being a nightly event and becomes infrastructure. The choice of the Cameo ZENIT W600 G2 rested on colour rendering and dimming behaviour rather than raw output, the four pylons concentrate both the beam angles and the maintenance, and the three-year horizon sets a service plan rather than closing one. It is a brief that reads as much like a fixed installation as it does like a lighting design.
