New: treplabAll contenthive-129948hive-196917krzzanhive-183959hive-166405steemhive-180932photographyhive-144064uncommonlabhive-185836bitcoinhive-183397hive-150122lifehive-188619krsuccesshive-101145hive-124908hive-139150hive-184714hive-103599hive-103393hive-145157TrendingNewHotLikersemmycool459 (25)in treplab • 6 years agoI belong to treplab: young inventorsAt treplab, we do tech related works. The picture above shows a student displaying one of his latest inventions. He uses an app in his phone to control lighting system