Offgrid UV-C LED Module (15 LPM)

Flow-activated UV-C sterilisation for pre-filtered water, stored tank water, rainwater systems and mains-fed installations. 8 year lifespan never change the bulb! 99.999% disinfection rate.

The Offgrid Water UV-C LED Module adds a microbiological treatment stage for water that has already been filtered. As water flows through the unit, UV-C LED light at the precise wavelengths of 260–280nm neutralises bacteria and microorganisms that may still be present.

It is designed as an add-on, not a standalone system. It works best after sediment and carbon filtration, where the water is already clear - this allows the UV-C light to work most effectively.

Unlike traditional mercury UV systems, this module is flow-activated - it only switches on when water moves through it. This reduces power use, extends LED lifespan, and makes it well suited to boats, campervans and off-grid setups running on 12V or 24V DC. A 220V AC adapter can also be used where mains power is available.

Typical installation points

• After Stage Two, before your taps - adds UV-C to your general water supply
• After Stage Two but before FinalStage RO - adds an extra sterilisation pass before drinking water reverse osmosis
• Before a cold water tap - galley, sink, campervan or point-of-use
• On stored tank water - treats water that has been sitting before it enters your system. We advise using a Stage Two filter too. 

This module is designed for pre-filtered, clear water. UV-C is less effective on dirty, cloudy or coloured water. For canal, river or rainwater use, install as part of a wider filtration system.

Specification

• Suitable source water: pre-filtered, stored tank, rainwater, mains-fed
• Power: 24W, flow-activated
• Power supply: 12V / 24V DC or 220V AC adapter
• Dimensions: approx. 30cm length x width 30mm (excl. connectors)
• Connections: 1/2" BSP female with 12mm hose barb options
• Maximum pressure: 0.1–0.4 MPa (approx. 15–60 psi)
• Sterilisation: UV-C LED, 260–280nm
• UV dose: 101.5 mJ/cm²
• Maximum effective flow rate: 15 litres per minute
• Expected lifespan: up to 8 years - never change bulb
  
• Safety: Status light (green/red) to show bulb activity
• Warranty: 2 years

For more information on UV-C and its effectiveness against micro-organisms there's an interesting study you can read here.