LUO-Light is a Helsinki-based lighting startup led by German architect Oliver Walter that has launched a modular, click-together linear lighting system using bamboo for the primary structural element.

LUOlight MOD D85
LUOlight MOD power
LUOlight diffuser and focused optics

Exchangeable optics and LED engines.

LUOlight LED units

Thanks Panos Loannidis for the original post!