IKIO high-performance Astral Edge – Lit Panel Light 2′ x 4′ are LED Edge-Lit Panel Lights, with a superior efficacy of 125 lm/W. These are excellent alternatives to traditional fluorescent troffers. The thin and lightweight edge-lit design easily lays into drop ceilings. The LED and flat panel combination provides an energy efficient luminaire (up to 60% savings over traditional fluorescent lights) with no shadows or dark spots and meets the new higher performance DLC classification. Measuring at 1.18” in height, there is no need to worry about unforeseen obstacles in the ceiling.