April 25, 2012 – While at Le Salon Lumen last week (CLICK HERE to check out our photos), we met Denis Ricard of Ventes Electra. We learned he has uploaded an installation video to YouTube for Retrolum: a troffer retrofit for 2×4 or 1×4 fixtures that converts them from 4xT12 to 2xT8 or 2xT12 to 1xT8 in, says Ricard, less than four minutes… all while maintaining the same light level.