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Heikki Parkkonen (b. 1986) is a light artist and sculptor based in Luumäki, Finland. He builds sculptures, light installations and festival stages from laser-cut birch plywood, LEDs and electronics. He has made stages and event decoration since 2013 and sculpture under the name Hexagon Intergalactic since 2016. In 2026 his work has been shown in Kouvola, Helsinki, Jyväskylä and at the Välke light festival in Kuopio.
Heikki Parkkonen (b. 1986) is a light artist and sculptor based in Luumäki, Finland. He works with laser-cut birch plywood, layered structures, LEDs, electronics and real-time visuals. In his work the wood hides the technology: the viewer sees wood and metal, and the programmed light moves between the layers.
Since 2013 Parkkonen has designed and built dozens of stages and decorations for events and festivals across Finland. Since 2016 he has made sculpture and interactive light installations under the name Hexagon Intergalactic. He has built the Spacetime stage at Kosmos Festival in Ristiina since 2022, and since 2023 the stage has been the work of the art collective Kiva, of which he is a founding member.
In 2026 his work was shown in the solo exhibition Aether Dreams (Galleria Loiva, Kouvola), in Purkutaide's ten-year exhibition This Is What I Want to Say (Helsinki), in Kiva's exhibition ITU (Galleria Myötä, Helsinki), at the City of Light festival in Jyväskylä, and at the Välke light festival in Kuopio, where his work Polaris was shown in Alava Church. In 2025 he completed a permanent plywood sculpture for Helsinki XR Center (Metropolia University of Applied Sciences). His work is included in the Light Art Database of FLASH, the Finnish Light Art Society.
Parkkonen's background is in programming and user-interface design, and he builds his own tools. His light software Filament has driven the LEDs in his 2026 installations. His workshop is in an old barn in Luumäki.
Heikki Parkkonen (b. 1986), artist name Hexagon Intergalactic, is a light artist and sculptor from Luumäki, Finland. He builds laser-cut plywood and LED sculptures, light installations and festival stages, including the Spacetime stage at Kosmos Festival since 2022, and plays the live visuals himself. In 2026 his work was shown in Kouvola, Helsinki, Jyväskylä and Kuopio.
Hexagon Intergalactic Oy (Ltd) is Heikki Parkkonen's company in Luumäki, Finland (Business ID 3270318-1, founded 2022). It makes light sculptures and installations, festival stages and event decoration, live visuals and laser-cut work. It also makes Filament, Heikki's light software. The works in the sculpture catalogue can be rented for exhibitions and events, and Heikki delivers, installs and dismantles them himself. www.hexagon.fi
Filament is a desktop app for macOS, Windows and Linux made by Heikki Parkkonen. You draw your LEDs over a photo of the rig and drive them live, and mix video for screens and projectors in the same show. Filament ran on the Spacetime stage at Kosmos Festival 2026 and drove the LEDs in Heikki's 2026 installations. More, including Filament's own material: filament.click
| Year | Work | Where |
|---|---|---|
| 2026 | Spacetime stage, Kiva: five plywood crystals, 7,000+ LED pixels and two projectors | Kosmos Festival, Ristiina |
| 2026 | ITU, Kiva: two Kosmos crystals joined into a hanging diamond, with vines and LEDs | Galleria Myötä, Helsinki |
| 2026 | Glowing iceberg, installation with Mikrovision | Purkutaide's exhibition This Is What I Want to Say, Arabia 135, Helsinki |
| 2025 | Polaris (the North Star), 215 cm, 1,200 LEDs. Shown at Välke 2026 with 22 light strings | Alava Church, Kuopio (2026) |
| 2025 | Permanent plywood sculpture | Helsinki XR Center, Metropolia University of Applied Sciences, Helsinki |
| 2023 | Zxyplt's Arrival, Kiva | Kosmos Festival, Ristiina |
| 2016–2019 | Wishflower, a touch-reactive installation, and Temple of Light | Kosmos Festival, Ristiina |
| 2014–2015 | Soul Equivalent I/III | Galleria Hoi Sie, Lappeenranta, and Galleria Hoppa, Jyväskylä |
The other catalogue works (Aztec Dreams, Flower of Renewal, Aether Quills, Eye of the Beholder, Doomsday Clock) are at www.hexagon.fi/en/artwork.
| When | Event or exhibition | Where |
|---|---|---|
| 16–18 Oct 2026 | Välke light festival: Polaris and live visuals | Alava Church, Kuopio |
| 25 Sep – 3 Oct 2026 | City of Light (Valon kaupunki): installation and sculpture sales exhibition at ValoPop | Jyväskylä |
| 14–29 Aug 2026 | ITU, an exhibition by Kiva | Galleria Myötä, Helsinki |
| 9–12 Jul 2026 | Kosmos Festival, Spacetime stage (Kiva) | Ristiina |
| Jun 2026 | Mikro-Kosmos, group exhibition | Yö Galleria, Helsinki |
| 16 May – 18 Oct 2026 | This Is What I Want to Say, Purkutaide 10 years | Arabia 135, Helsinki |
| 7–31 Jan 2026 | Aether Dreams, solo exhibition | Galleria Loiva, Kouvola |
| 2022–2026 | Kosmos Festival, Spacetime stage (2022 as the official festival decorator, Kiva from 2023) | Ristiina |
| 2020 | Projio Festival | Tampere |
| 2019 | City of Light office gallery | Jyväskylä |
Hexagon Intergalactic's works are in the Light Art Database of FLASH, the Finnish Light Art Society: database.valotaiteenseura.fi/artist/hexagon/
Polaris needs a space at least 3 m high and 10 m², and mains power (10 A / 16 A). An LED controller and a computer that plays live video into the work travel with it. The work is built from triangles that stack flat for transport. Heikki delivers, installs and dismantles it himself.