SunSun UV-C 5W Replacement Bulb – 4-Pin UV Lamp for CUV-505 Sterilisers

The SunSun UV-C 5W Replacement Bulb is a high-quality replacement lamp designed for SunSun CUV-505 UV sterilisers and many other compatible 5W UV-C units using a 4-pin PLS fitting. It emits 254 nm UV-C light, the optimum wavelength for reducing suspended algae, harmful bacteria, and other microorganisms that can affect aquarium and pond water quality.

Manufactured for reliable performance, the bulb has a service life of up to 8,000 hours under normal operating conditions. To maintain maximum UV sterilisation efficiency, it is recommended to replace the bulb approximately every 8–12 months, even if it continues to illuminate, as UV-C output gradually decreases over time.

Key Features

• Genuine 5W UV-C replacement bulb
• Compatible with SunSun CUV-505 UV sterilisers
• Fits many compatible 5W 4-pin PLS UV-C lamps
• Emits 254 nm UV-C germicidal wavelength
• Helps reduce green water, algae, bacteria, and harmful microorganisms
• Long service life of up to 8,000 hours
• Easy to install replacement lamp
• Suitable for aquarium and pond UV sterilisers

Benefits

• Restores full UV sterilisation performance
• Helps maintain clearer and healthier water
• Supports algae control
• Improves the effectiveness of UV filtration systems
• Reliable long-lasting operation

Technical Specifications

• Brand: SunSun
• Product Type: UV-C Replacement Bulb
• Power: 5W
• Bulb Type: PLS 4-pin
• Wavelength: 254 nm
• Overall Length: 16 cm
• Rated Service Life: Up to 8,000 hours
• Compatible With:
  • SunSun CUV-505
  • Most compatible 5W 4-pin UV-C sterilisers