The ETi 2 ft x 4 ft LED external driver flat panel produces a gentle and uniform luminance offering state of the art energy efficiency that is environmentally friendly. The low-profile flat panel is constructed from high quality aircraft aluminum and superior materials offering an enduring performance against light degradation. It is easily installed recessed, suspended and surface mounted. Various mounting kits are available. Applications for LED retrofit kit. Ideal one-for-one replacement of conventional linear fluorescent lay-in troffers. Applications include offices, education environments, healthcare, hotels, retail stores and commercial buildings.