Janne Halttu amurikirwa ku rubuga Lighting Design Winners ibi bikorwa: Ibishushanyo 1 byatsindiye ibihembo, byahawe ishimwe mu byiciro: Igishushanyo cy'Urumuri.
Reba icyegeranyo cy'ibikorwa byatsindiye ibihembo byakozwe na Janne Halttu
Ibishushanyo byakozwe na Janne Halttu
Igishushanyo cy'Urumuri Tunnelma CCT Led Lighting cya Janne Halttu
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