Among other things, Tynell designed the lighting for the office of the Secretary-General of the United Nations in New York and for the Parliament House and Lasipalatsi building in Helsinki.
[3] He collaborated with distinguished Finnish architects, including Alvar Aalto, and his lamps were widely sold not only in Finland but in the United States too, where his designs were popular especially in the 1950s.
[7]As the head of metalwork and in charge of designing light fixtures, Taito and Tynell worked in close cooperation with architects.
[year needed] In particular, Tynell designed light fixtures for a building at Helsinki University of Technology, realised by architect Armas Lindgren.
[3] From this point, private homes started to be fitted with light fixtures, and Taito's factory relocated to larger premises and hired more workers.