A lighting fixture for use in a security detention facility. The lighting fixture includes a unitary housing adapted to be mounted to a surface in the security detention facility, a first bracket disposed within the unitary housing, and a light source coupled to the first bracket, the light source including a plurality of light-emitting diodes (LEDs). When the unitary housing is mounted to the surface in the security detention facility, the internal components of the lighting fixture (e.g., the light source) are not accessible, such that inmates of the security detention facility are unable to damage the internal components of the lighting fixture or access the internal components of the lighting fixture to hide weapons or contraband therein or use those components to harm themselves, other inmates, and/or security personnel.