Columbia Lighting MPS4-35LW-CW-ED1U-BTSL 4-foot MultiPurpose linear LED fixture. Configuration includes 3500K color temperature, 4000-lumen class output, curved frosted acrylic lens, wide light distribution, ED1 0-10V 1% dimming driver, universal 120-277V input, and factory BTSL Bluetooth-programmable PIR occupancy sensor with automatic dimming photocell and 360-degree lens. Suitable for surface, wall, or suspended commercial lighting applications.=Columbia MPS4 4ft 4000LM 3500K LED Linear Light BTSL Sensor