Advanced lighting technology developers association (LT: PATVA) is a civil non-profit organization to coordinate the activities of the association members, present their interests and defend them.
![](http://ledigma.lt/wp-content/uploads/2015/07/patva_logo-940x400.png)
Advanced lighting technology developers association (LT: PATVA) is a civil non-profit organization to coordinate the activities of the association members, present their interests and defend them.