Specifications include, but are not limited to: Direct Wired LED Strip KitsMust not use existing bi-pin fluorescent sockets. Tier 1 - LED Tier 2 - N/A High Efficiency Interior Fixtures & Retrofit Kits 1x4, 2x2 and 2x4 Prismatic, Parabolic, Recessed Direct and Recessed Indirect fixtures. Tier 1 - LED Tier 2 - LED CONTROL Linear Pendant Fixtures Tier 1 - LED Tier 2 - LED CONTROL Industrial/ Commercial Fixtures 4ft & 8ft LED industrial/commercial strip or wrap fixtures. Tier 1 - LED Tier 2 - LED CONTROL Clean Room Rated or Vapor Tight Fixtures 1x4 or 2x4 Tier 1 - LED Tier 2 - LED CONTROL Stairwell Fixture with integral Occupancy Sensor Controls Tier 1 - LED Tier 2 - N/A High and Low Bay High Intensity Fixtures & Retrofit Kits Tier 1 - LED.