Small on size. Big on peace of mind.
The Fogstar x LuxpowerTek GEN2-LB-EU 3.6K is a single phase (230V) hybrid inverter that turns your solar and battery storage into a system you can rely on, whether you're staying on the grid, cutting the cord, or landing somewhere in between.
We've lived off grid since 2009, and we know what makes a good inverter: one that gets on with the job quietly and doesn't ask you to give up modern comforts. This one does exactly that.
3.6kW continuous output – enough to run a typical home's everyday loads, with pure sine wave power that's gentle on sensitive electronics.
Dual MPPTs – two independent solar inputs, so you can harvest from roofs facing different ways.
On-grid and off-grid ready – one inverter, whichever way your solar journey goes.
Made for Fogstar 48V (51.2V) batteries – stable BMS communication, accurate state-of-charge reporting, and efficient charge and discharge control.
IP66-rated enclosure – built for indoor or outdoor installation.
10-year warranty – long-term confidence, from a range built on LuxpowerTek technology trusted by over 350,000 users worldwide.
Keep an eye on it from anywhere – the LuxpowerTek app gives you remote monitoring, with RS485, Wi-Fi and CAN communication, and a Wi-Fi dongle included.
Room to grow – parallel capability means your system can scale as your needs do.
DIY-friendly – a compact, wall-mounted design made to be installer-friendly, with a touch colour screen so you can see what's happening at a glance.
Dual MPPT, pure sine wave, on or off grid. Pairs with Fogstar 48V batteries.
Maximum 6.6KW of solar input
New solar and battery storage installations
Upgrading or replacing an existing system
Backup and resilience, so you're ready for the next power cut
Anyone wanting to become more energy self-sufficient, even under our intermittent UK sunshine
The GEN2-LB-EU 3.6K works with Fogstar Energy 48V (51.2V) batteries. As a guide:
Getting started: Fogstar Energy 48V 5.12kWh Rack Battery
If you're dipping your toes into solar or planning a full off-grid build, we will listen and help you design a system around your home, your budget and your goals. Can't see what you need in the shop? We'll quote it or point you in the right direction.
Free energy. Gentle on the planet and your wallet.
What is the GEN2-LB-EU 3.6K?
A single phase 230V hybrid inverter from Fogstar, built on LuxpowerTek technology, designed to work with Fogstar 48V (51.2V) batteries.
Can it be used off grid?
Yes. It's designed for both on-grid and off-grid operation.
Is it suitable for outdoor installation?
It has an IP66-rated enclosure, so it suits indoor and outdoor installs.
Can I monitor it remotely?
Yes, through the LuxpowerTek app.
How long is the warranty?
10 years.
What size battery do I need?
We'd suggest 10kWh as a sweet spot, with 5.12kWh as the minimum and 16.1kWh if you want full headroom.
Power your home, cabin or workshop off grid, with no compromise on comfort.
Key specs:
Output: 6kW continuous, single-phase 230V, pure sine wave
Solar input: Dual MPPT, up to 9.6kW PV
Battery: 48V (51.2V), up to 140A charge/discharge
Switchover: Under 7ms, so lights and computers stay on
Ports: Generator, AC coupling and smart load support
Scalable: Parallel capability up to 18 units
Monitoring: LuxpowerTek app via Wi-Fi dongle (included)
Size: 330 × 505 × 135mm, wall mounted, just 14.5kg
A proper workhorse for off-grid living, and built to work with Fogstar batteries.
Off-grid living doesn't mean going without. We've lived off grid since 2009, and a good inverter is the heart of the system. The SNA 6K gives you a clean 6kW of pure sine wave power, enough to run a kettle, washing machine and lights at the same time, and gentle enough for laptops, TVs and other sensitive electronics.
With two independent MPPT trackers and up to 9.6kW of PV input, it makes the most of your panels, even if they face different directions or sit on different roofs. It also has a dedicated generator port, so if you get a dull week in November you have a back-up plan.
Made to work with Fogstar batteries
This inverter is set up to talk to Fogstar 48V (51.2V) batteries, which means:
Stable BMS communication
Accurate state-of-charge readings
Efficient charge and discharge control
Battery pairings:
Best overall: Fogstar Energy 10kWh
Highest performance: Fogstar Energy 16.1kWh or 16.1kWh ECO
Scalable option: Fogstar 5.12kWh rack batteries
Reliable when it matters
6kW continuous output with high surge capability for motors and pumps starting up
Fast switching (under 7ms) means no flicker and no resetting clocks
Compact, wall-mounted design that's easy to fit
Monitor from your phone
The Wi-Fi dongle is included, so you can check solar production, battery state and loads from anywhere using the LuxpowerTek app. RS485 and CAN communication are built in for battery and system integration.
Specifications
Manufacturer: Fogstar x LuxpowerTek
Model: SNA 6K
Type: Off-grid inverter (not grid-tie)
AC output: 6kW, single-phase, 230V, pure sine wave
PV input: Dual MPPT, up to 9.6kW
Battery system: 48V (51.2V) nominal
Battery charge/discharge current: Up to 140A
Transfer time: <7ms
Parallel capability: Up to 18 units
Communication: RS485, Wi-Fi, CAN
Dimensions: 330 × 505 × 135mm
Weight: 14.5kg
Warranty: 3 years
Ideal for
Off-grid homes and cabins
Workshops and remote buildings
Backup and resilience systems
Remote or unstable grid locations
⚠️ Important: This is an off-grid inverter and is not G99 certified. It cannot be used to export power to the grid.
Not sure which battery, how many panels, or whether the SNA 6K is the right fit for your set-up? Get in touch and we'll be happy to help design a system for your requirements.
Please note delivery for this item is Not Free, contact us with your post code and a short message with any details you think we should be aware of - for example - limited access or the number of units you are interested in. Prior to your purchase, we will find the most economical solution to safely deliver the kit to you and advise on the delivery fee.
Our DIY “Plug & Play” solar system is the easiest entry to the benefits of solar power.
These types of kit have been widely used in Germany & Europe for many years. Generally considered safer the conventional roof mounted full installations because of the elimination of high voltage DC cables.
If you have a south facing unshaded spot for the solar panels, we estimate that this system could generate 1062 KWh’s of power per year. Saving you a potential £276 per year based on the average UK cost of electricity. Your pay-back period could be less than 18 months, and the savings will go on for the life of the system which could be 25 + years!
These kits are specifically designed to take care of most households electrical “base load” e.g. fridges, freezers, WIFI, CCTV, computers, central heating pumps etc.. i.e. those items that are generally left on all the time. So even if you are at work during the day and the house is empty you can still save money without the major investment required for conventional “fully installed” roof top systems.
In addition, if/when you move properties you can easily take your solar system with you – it belongs to you and not the property.
What you get for your £390 DIY solar kit:
1) 2 × 465W all black JA solar panels with a 30 year warranty – each panel is 1762mm x 1134mm x 30mm.
2) 2 x adjustable alloy solar panel mounts for the ground, a flat roof, or even a south facing wall. With a contemporary silky black anodised finish and extra long rear legs so that the panels can be adjusted to capture most of the UK winter sun. – Other mounting systems are available, please let us know what you intend to mount the panels on & we will find & price the appropriate mounting system for you.
3) 1 x Hoymiles HF-800-WB 800W microinverter with integrated WIFI & a 12-year warranty.
4) 2 x Miro-inverter mounting brackets to mount the micro inverter directly to the rear of one of the solar panels.
5) 1 x Extension cable with MC4 solar ends to connect the 2 solar panels to the microinverter in series.
6) Peace of mind because the kit is properly engineered & works.
7) Instant savings on your electricity bill.
The microinverter has built in WIFI, just download the app. and you can monitor historical & real time energy production on your smart device. The Microinverter is designed for outdoor installation & complies with IP67. It also complies with, CE-LVD:EN6210-1(&2), & IEC 62321. The kit is fully UK compliant and if you wished to register the installation with your DNO (District Network Operator) you will find the Hoymiles HF-800-WB 800W Microinverter on the ENA test register which informs the G98 application process with your DNO. The ENA code for this product is HOYMZ/18074/V1/A3 The UK regulations changed this August (2026) to allow one of these systems per circuit.
The adjustable mounts are designed for the British climate and will give a steep angle (to collect the winter sun). The rear legs are adjustable from a min. of 64cm to a max. of 100cm. Made from aluminium with stainless steel fixings and anodised with a smart & contemporary matt black finish. The best all year round angle for solar panels in the UK is 32 degrees from horizontal. If you wanted to maximise solar generation then mid winter the angle would be increased by15 degrees to be more vertical (i.e. 47 degrees), and mid summer decreased by 15 degrees to be more horizontal (i.e. 17 degrees). However the best all round angle if you just wanted to set and leave them would be 32 degrees. They are suitable for ground mounting or flat roofs or a box profile roof of shallow pitch. The mounts will need to be screwed or bolted to a stable structure or something heavy. They can even be bolted to a south facing wall. Suitable for both landscape and portrait mounting.
The photographs of the panels attached to heavy rubber feet are a good solution for a flat roof that you do not want to screw into. The rubber feet weigh 18kg and can be supplied at £10 each if required (collection or local delivery only). For demonstration purposes the panel shown in the portrait position is at 35 degrees and the panel in the landscape position is at 47 degrees.
Collection by prior arrangement, delivery may be possible please provide your postcode and we can provide a delivery fee (generally allow for £1.50 per mile from Norwich).
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