UV Steriliser
Compact inline UV-C steriliser
Hidden installation outside the aquarium
Crystal-clear water
Reduces green water algae
Helps control bacteria and fungal spores
Price range: £ 52.99 through £ 58.99 (incl. VAT)
- EUR: 73.86€ - 82.23€
Overview ›
The LGND Eclipse Inline UV-C™ Series is a compact external ultraviolet steriliser designed to improve water clarity and reduce biological contamination in aquariums. It connects directly into your existing filter hose line, allowing filtered water to pass through a UV-C irradiation chamber before returning to the aquarium. By targeting free-floating algae, bacteria and fungal spores, the Eclipse Inline UV-C™ helps maintain a healthier aquatic environment with less manual intervention.
Its inline installation keeps all equipment outside the aquarium, resulting in a cleaner, more natural-looking display. The steriliser connects between the outlet of an external filter and the return hose, ensuring that water is first mechanically and biologically filtered before UV-C treatment — maximising sterilisation efficiency and protecting the UV lamp from debris.
The UV-C lamp is protected inside a high-transparency quartz glass sleeve, which isolates the electrical components from the water while allowing maximum UV-C transmission. The outer housing is manufactured from UV-resistant ABS for long-term durability. Multiple hose adapters are included to accommodate the most common aquarium hose sizes.
Suitable for freshwater and marine aquariums, the LGND Eclipse Inline UV-C™ is available in two power ratings — 3W and 5W — to match different aquarium volumes and sterilisation requirements. Both models support continuous operation, horizontal or vertical installation, and accept 13 mm, 16 mm and 19 mm hoses.
Key Features ›
- Compact inline UV-C steriliser
- Hidden installation outside the aquarium
- Crystal-clear water
- Reduces green water algae
- Helps control bacteria and fungal spores
- Safe quartz glass UV chamber
- UV-resistant ABS housing
- Multiple hose adapters included
- Suitable for freshwater & marine aquariums
- Easy UV lamp replacement
Technical Specifications ›
| Model | LGND Eclipse Inline UV-C™ 3W |
| UV-C Lamp | 3W UV-C |
| Input Voltage | AC 220–240V / 50–60Hz |
| Installation | Inline External |
| Orientation | Horizontal or Vertical |
| Aquarium Volume (Green Water) | Up to 60 L |
| Aquarium Volume (Sterilisation) | 60–150 L |
| Recommended Flow Rate | 100–200 L/h |
| Housing Material | UV Resistant ABS |
| Quartz Sleeve | High Transparency Quartz Glass |
| Power Cable | 1.5 m |
| Hose Sizes Included | 13 • 16 • 19 mm |
| Operating Mode | Continuous |
| Water Type | Freshwater & Marine |
| Model | LGND Eclipse Inline UV-C™ 5W |
| UV-C Lamp | 5W UV-C |
| Input Voltage | AC 220–240V / 50–60Hz |
| Installation | Inline External |
| Orientation | Horizontal or Vertical |
| Aquarium Volume (Green Water) | 50–100 L |
| Aquarium Volume (Sterilisation) | 100–300 L |
| Recommended Flow Rate | 100–300 L/h |
| Housing Material | UV Resistant ABS |
| Quartz Sleeve | High Transparency Quartz Glass |
| Power Cable | 1.5 m |
| Hose Sizes Included | 13 • 16 • 19 mm |
| Operating Mode | Continuous |
| Water Type | Freshwater & Marine |
Water Cycle Diagram ›
Water Flow
Aquarium → External Filter → LGND Eclipse Inline UV-C™ → Return Hose → Aquarium
Sterilisation Process
- Water is pumped from the aquarium into the external filter.
- Mechanical and biological filtration removes debris and harmful compounds.
- Clean water enters the Eclipse Inline UV-C™ chamber.
- Water flows around the quartz glass sleeve.
- UV-C radiation destroys suspended algae, bacteria, fungal spores and other free-floating microorganisms.
- Sterilised water returns safely to the aquarium.
Note: UV-C sterilisation only affects organisms suspended in the water column. It does not remove algae already attached to glass, rocks or plants.
UV Lamp Replacement ›
- Step 1: Disconnect the power supply. Close the filter valves before opening the steriliser.
- Step 2: Unscrew the upper housing. Remove the lamp assembly carefully.
- Step 3: Withdraw the quartz sleeve. Inspect it for mineral deposits. Clean only with a soft cloth.
- Step 4: Remove the UV-C lamp from the socket. Install a genuine LGND Eclipse Inline UV-C™ Replacement Lamp of the correct wattage (3W or 5W). Avoid touching the glass with bare fingers.
- Step 5: Reinstall the quartz sleeve. Check that the O-ring is correctly positioned. Lubricate with aquarium-safe silicone grease if necessary.
- Step 6: Reassemble the housing. Reconnect the hoses. Restore water flow. Inspect carefully for leaks before reconnecting electrical power.
FAQ ›
Can the UV steriliser run continuously?
Does UV-C kill beneficial bacteria?
Will it remove green water?
Will it remove algae growing on rocks or glass?
Can it be used in planted aquariums?
Can it be used in marine aquariums?
Which hose sizes are supported?
Can the steriliser be installed horizontally?
How often should the UV-C lamp be replaced?
How often should the quartz sleeve be cleaned?
Safety ›
Download Safety Data Sheet (SDS)
Important Safety Instructions
- ⚠ Disconnect the power supply before servicing.
- ⚠ Never operate the UV-C lamp outside the housing.
- ⚠ Never look directly at an illuminated UV-C lamp.
- ⚠ UV-C radiation can cause serious eye and skin injury.
- ⚠ Do not expose fish, animals or people directly to UV-C radiation.
- ⚠ Handle the quartz sleeve with care.
- ⚠ Replace any cracked or damaged quartz sleeve immediately.
- ⚠ Keep all electrical connections dry.
- ⚠ Ensure hose fittings are fully secured before operation.
- ⚠ Always inspect for leaks after maintenance.
- ⚠ This appliance is intended for indoor aquarium use only.
- ⚠ Keep out of reach of children.
Maintenance ›
- - Clean the quartz sleeve every 2–3 months.
- - Replace the UV-C lamp every 6–12 months.
- - Inspect the O-rings during every service.
- - Check hose connections regularly.
- - Use only genuine LGND Eclipse Inline UV-C™ replacement parts.