The 9” x 36” surface-mount ceiling light is purpose-built for correctional, institutional, and behavioral health environments where security, safety, and long-term performance are top priorities. This robust luminaire features an innovative door-free design that completely eliminates the possibility of contraband concealment and tampering, ensuring reliability and occupant safety. Engineered for permanent installation, it combines strength, durability, and optical precision in a seamless construction that resists physical impact and unauthorized access.
Constructed from a single piece of die-formed, prime-grade material, the housing is continuously TIG-welded with smoothed corners and no post grinding, creating a reinforced structure that withstands abuse in demanding applications. Available in both cold-rolled steel and painted stainless steel, the housing receives a gloss white TGIC polyester powder coat finish with a five-stage pre-treatment process, offering long-lasting resistance to corrosion and wear. A concealed, one-piece lens retention bracket adds an additional layer of protection while maintaining a clean, tamper-resistant aesthetic. The luminaire is designed for secure ceiling installation using six external high-security bolts (provided by others), guaranteeing a stable, permanent mount in challenging environments such as correctional cells, dayrooms, sally ports, restrooms, containment areas, and recreational spaces.
The optical system features a high-efficiency diffused acrylic inner lens paired with a durable outer lens available in clear polycarbonate or tempered glass, providing impact resistance and visual comfort. Lens thickness options range up to 0.625”, ensuring adaptability to different security requirements. A symmetric, diffused DR acrylic option offers soft, uniform light distribution ideal for institutional interiors.
At the core of the light is a thermally managed LED system that ensures consistent performance and longevity. The serviceable mid-power LED array is available in 3500K, 4000K, and 5000K color temperatures, maintaining excellent color quality within a 3-step MacAdam ellipse tolerance. Standard output offers a minimum 82 CRI with an optional 90 CRI configuration for projects demanding superior color rendering. The system is designed for efficiency and longevity, supported by an under-stressed constant-current driver that contributes to an extended service life.
The LED driver operates on 120–277VAC or 347VAC, 50/60Hz input, delivering less than 20% total harmonic distortion and a power factor greater than 0.90. It provides 85% or higher driver efficiency and features 0–10V dimming with a 1–100% range, including dim-to-dark capability for most voltage configurations. Optional eldoLED ECOdrive DALI drivers offer digital dimming precision and compatibility with building automation systems. Maximum source current is limited to 165 µA, ensuring stable performance and minimal interference with control systems.
Certified to UL standards by Intertek Testing Laboratory, this ceiling-mounted LED light is rated for damp locations, making it suitable for a wide variety of interior applications where reliability and safety are critical. Designed with attention to both performance and protection, it delivers long-lasting, visually comfortable, and tamper-resistant lighting for secure and institutional settings.
https://kenall.com/Products/SSD.htm