LED high-bay bulb Synergy21 S21-LED-UFO0051 236W 30680 lm Cool white 6500K 90° CRI 80

Synergy21 S21-LED-UFO0051 is a 236 W LED high-bay bulb that provides 30,680 lumens of cool white light at 6500 K with a colour rendering index of 80. Intended for industrial and large indoor spaces, it offers a 90° beam angle and a rated lifetime of 50,000 hours, delivering steady, energy-efficient illumination for general and task lighting in warehouses, factories and similar facilities.

Advantages

The high lumen output combined with 236 W power makes this LED high-bay suitable for bright, wide-area illumination while consuming less energy than many traditional discharge lamps. A long rated lifetime of 50,000 hours reduces maintenance and replacement cycles. The 6500 K cool white colour temperature and CRI 80 provide clear, neutral-to-cool lighting suitable for inspection and task-focused environments. The 90° beam angle concentrates light for targeted coverage in high-ceiling spaces.

Suitable for

• Warehouses and storage halls
• Manufacturing floors and industrial plants
• Large retail spaces and showrooms
• Sports halls and gymnasiums with high ceilings
• Workshops and maintenance areas

When it may not be suitable

This bulb’s cool 6500 K light is not ideal for environments that require warm, cosy lighting or for settings where colour-critical tasks demand a higher CRI than 80. It may be unsuitable for very narrow or highly decorative indoor spaces where a wide-area, utilitarian high-bay fixture would overwhelm the aesthetic.

Key specifications

• Rated power: 236 W
• Luminous flux: 30,680 lm
• Colour temperature: 6500 K (cool white)
• Beam angle: 90°
• Colour Rendering Index (CRI): 80
• Rated lifetime: 50,000 hours

How to use

Install the Synergy21 LED high-bay in appropriate high-ceiling fixtures or pendant mounts following the luminaire manufacturer’s instructions and local electrical regulations. Ensure compatible mounting hardware and adequate ventilation around the lamp to allow heat dissipation. Use with suitable drivers or ballast adapters if required; switch to power after secure mechanical and electrical connections are confirmed. Regularly inspect mounting points and connections during routine maintenance.

What to consider before purchase

• Ceiling height and mounting type to ensure correct beam coverage
• Required lumen output and spacing for the intended area
• Desired colour temperature and whether 6500 K is appropriate
• Whether CRI 80 meets colour accuracy needs for tasks
• Compatibility with existing fixtures, drivers or dimming systems

Usage recommendations

For best results in warehouses and industrial halls, plan fixture spacing and mounting height to achieve uniform illuminance. Use this 236 W LED high-bay where cool white, high-output lighting is required for task visibility and inspection; combine with appropriate controls and regular maintenance to maximise lifetime and energy savings.