The SQ-LED thermoplastic emergency light is touted by Mule Lighting as “the most economical LED emergency light available today.” Compared to typical “bug-eye” units, the use of LED lamps instead of traditional incandescent lamps reduces the size of the unit by 50%. The SQ-LED is suitable for all types of applications, from commercial to retail. According to Mule, the SQ-LED is favored for its sturdy construction and long-lasting nickel cadmium battery backup system.