Elco Lighting EP848B 48" Extension Stem Track Accessory, All Black FinishElco Lighting EP848B EP848B Product Description Elco Lighting 48" Extension Stem Track Accessory, All Black Finish FEATURES: Extends line voltage fixtures from 1 or 2 circuit track or EP811 EP819 monopoint. Also extends a Track 22 fixture from the EP900 transformer. Drops head from track About Elco Lighting: Founded in 1991 by its president, Steve Cohen, ELCO Lighting develops and markets lighting products for commercial and residential applications.