LED bulb Synergy21 S21-LED-BS00072 T8 20 W, 3400 lm, Cool white 6100 K, CRI 80

Synergy21 S21-LED-BS00072 is a T8 LED bulb that delivers 3,400 lumens from 20 W of input power. The lamp produces cool white light at a correlated colour temperature of 6100 K with a Colour Rendering Index (CRI) of 80, a beam angle up to 140° and an estimated lifetime of 35,000 hours. It is designed for use in tubular T8 fittings and operates from a wide mains range of 100–240 V at 50–60 Hz, providing high-brightness, energy-efficient illumination for commercial and industrial environments.

Advantages

The Synergy21 T8 LED bulb offers high luminous efficacy by converting 20 W of input power into a strong 3,400 lm output, reducing energy consumption compared with traditional fluorescent T8 tubes. With a 6100 K cool white output and CRI 80, the lamp maintains acceptable colour reproduction for tasks requiring clear, bright light. A long rated lifetime of 35,000 hours and a wide beam angle (up to 140°) deliver long service intervals and broad area coverage, while compatibility with standard tubular T8 fittings simplifies installation and replacement.

Suitable for

• Commercial premises such as retail spaces and offices requiring bright cool white lighting
• Industrial environments and workshops where high lumen output and durability are needed
• Storage areas, corridors and utility rooms where wide beam distribution is beneficial

Key specifications

• Form factor: tubular T8
• Power consumption: 20 W
• Luminous flux: 3,400 lm
• Colour temperature: 6,100 K (cool white)
• Colour Rendering Index: 80
• Beam angle: up to 140°
• Rated lifetime: 35,000 hours
• Mains voltage: 100–240 V, 50–60 Hz

How to use

Install the Synergy21 S21-LED-BS00072 into compatible tubular T8 fittings following the fixture manufacturer's instructions and ensuring mains power is switched off before installation. Verify that the fitting supports the bulb's operating voltage range (100–240 V) and secure any required starter or driver configuration according to the fixture type. After installation, switch the circuit on and confirm uniform illumination and correct orientation within the fitting.

Usage recommendations

For optimal performance and lifetime, use the bulb in fixtures rated for LED retrofits or direct T8 replacements, maintain ambient temperatures within the fixture manufacturer's recommended range, and avoid frequent on/off switching where possible. Replace bulbs in groups in large installations to maintain uniform light colour and output over time.