Knightsbridge PRECW4 Preceptor 4ft 30W Modular Linear Fitting – CCT & Wattage Adjustable, UGR19

The Knightsbridge PRECW4 Preceptor is a highly versatile 4ft modular linear luminaire designed for commercial, retail and industrial lighting projects. With its adjustable wattage and selectable colour temperature, it provides a flexible, future-proof lighting solution suited to a wide range of applications. The modular system supports optional plug-in accessories, including emergency packs and microwave sensors, ensuring complete project adaptability.

Modular Design

The Preceptor range is built around a fully modular concept. Whether your installation requires a standard linear fitting, an emergency version or microwave sensor integration, the system allows effortless customisation via simple plug-in modules. Multiple lengths and power configurations are available to meet the exact needs of each application.

Versatile CCT & Wattage Adjustment

Tailor the lighting output to your environment with three popular colour temperatures—3000K, 4000K and 5700K. Choose between four wattage options—18W, 21W, 26W or 30W—to achieve the desired lumen output and energy performance, all from a single SKU.

Fast & Flexible Installation

Installation is made easy with a hinged gear tray, rear and end conduit entries, BESA compatibility and standard 600mm fixing points. The unit is equipped with three push-fit loop-in/loop-out terminal blocks, offering high flexibility for conduit-based wiring and retrofit projects.

Key Features

• Optional modular microwave sensor (MODMWS).
• Optional modular emergency conversion kit (MODEMKIT).
• Optional suspension kit (5FTT5KIT).
• UGR19 low-glare performance for comfortable lighting.
• High-efficiency LED technology.
• Selectable CCT: 3000K / 4000K / 5700K.
• Adjustable wattage: 18W / 21W / 26W / 30W.
• Rear and end conduit fixings.
• BESA box compatible with standard 600mm fixing centres.
• Integrated hinged gear tray for easy maintenance.
• Push-fit loop-in/loop-out terminal blocks.
• 18W – 2,400 lm @ 4000K.
• 21W – 2,800 lm @ 4000K.
• 26W – 3,400 lm @ 4000K.
• 30W – 3,900 lm @ 4000K.

Data Sheet

Click here to download the Data Sheet