Humsienk PULSAR 12V 1000W Pure Sine Wave Inverter
Built for campervans, boats and small off-grid setups, this 12V 1000W pure sine wave inverter delivers stable power for fridges, lighting, laptops and everyday electronics. Its built-in MPPT controller supports up to 600W of solar panels, while utility and solar charging keep your battery ready.
- 1000W Pure Sine Wave Output: Delivers stable 230V AC power for fridges, lighting, laptops and sensitive electronics in campervans, boats and small off-grid systems.
- Up to 600W PV Array Power: Supports up to 600W of connected solar panels for efficient daytime energy collection.
- 40A MPPT Solar Charging: The built-in MPPT controller provides up to 40A solar charging for compatible 12V battery systems.
- 80A Total Charging Current: Supports up to 80A combined solar and utility charging to help recharge the battery more quickly.
- 2000W Surge Capacity: Delivers twice the rated output power for up to one second to handle short appliance startup loads.
- Flexible Power Priority: Choose utility-first, solar-first or SBU priority to match different off-grid and backup power needs.
- Compact Off-Grid Design: The lightweight 3.3kg wall-mounted design saves space in campervans, boats, cabins and small power systems.
Choose Your 12V Battery Setup
Pair your 12V 1000W inverter with the right 12V LiFePO4 battery for RVs, boats, camping, small appliances, and backup power.
| Power Scenario | Typical Devices | Power Demand | Recommended Battery Setup | Battery Capacity |
|---|---|---|---|---|
| Essential 12V Backup Basic backup use | Lights / Wi-Fi / Phone Charging / Small Fan / TV | Light Load For daily essentials and small devices | 1.28–2.05 kWh | |
| Extended Runtime Setup RV & camping power | Fridge / Freezer / TV / Laptop / Coffee Maker / Small Pump | Medium Load Longer backup time with more capacity | 2.56–4.02 kWh | |
| Maximum Runtime Large-capacity 12V backup | RV / Boat / Off-grid Cabin / Longer Backup Use / Multiple Appliances | Heavy Runtime Large 12V battery capacity for longer use | 4.10–8.19 kWh |
💡 Tip: This is a 12V inverter. Use a 12V battery system only. Do not connect batteries in series, as series connection increases the voltage to 24V or higher. For longer runtime, choose a larger 12V battery or connect identical 12V batteries in parallel only if supported by the battery manual.
Estimate Your 12V Backup Time
Choose a common load or enter your own power usage to estimate how long each 12V battery setup can keep your inverter running.
Choose Your Power Load
Not sure? Start with one of the common 12V inverter load presets below.
Estimated runtime = battery capacity × 90% usable energy ÷ power load.
Essential 12V Backup
Compact 12V capacity for lights, Wi-Fi, phone charging, small fans, and TV.
Extended Runtime Setup
More capacity for RVs, boats, camping, small pumps, laptops, and longer daily use.
Maximum Runtime
Large-capacity 12V backup for longer RV, marine, cabin, and off-grid use.
Estimated runtime is for reference only. Actual performance may vary depending on appliance power, inverter efficiency, battery settings, temperature, and installation conditions. This is a 12V inverter. Use a 12V battery system only. Do not connect batteries in series, as series connection increases the voltage to 24V or higher.
Specification
General
| Model | HSINV12V1KW220-SRA-EU |
| Dimensions (L × W × H) | 9.45 × 3.58 × 11.26 in / 240 × 91 × 286 mm |
| Net Weight | Approx. 3.3 kg / 7.28 lb |
| Operating Temperature | 14°F to 122°F / -10°C to 50°C |
| Storage Temperature | -15°C to 60°C |
| Humidity | 5% to 95% RH, non-condensing |
| Installation | Wall-mounted |
| Compliance | CE |
Inverter Output
| Rated Output Power | 1000W / 1000VA |
| Output Waveform | Pure Sine Wave |
| Output Voltage | 230V AC ±5% |
| Output Frequency | 50Hz |
| Surge Capacity | 2000W for up to 1 second |
| Peak Inverter Efficiency | 94% |
| No-Load Power Consumption | Less than 28W |
| Overload Protection | 3 seconds at ≥150% load / 5 seconds at 101%–150% load |
| Output Short-Circuit Protection | Circuit breaker |
Solar Input
| Maximum PV Array Power | 600W |
| Solar Charger Type | MPPT |
| MPPT Voltage Range | 20–150V DC |
| Maximum PV Open-Circuit Voltage | 150V DC |
| Maximum Solar Charging Current | 40A |
Battery & Charging
| Nominal Battery Voltage | 12V DC |
| Maximum AC Charging Current | 40A |
| Maximum Solar + AC Charging Current | 80A |
| Charging Algorithm | 3-Stage Charging |
| Default Bulk Charging Voltage | 14.1V |
| Default Float Charging Voltage | 13.5V |
| Low DC Cut-Off Voltage | 10.75V at load below 50% / 10.5V at load of 50% or above |
| High DC Cut-Off Voltage | 16.0V |
AC Input & Power Sources
| Nominal AC Input Voltage | 230V AC |
| Acceptable AC Input Range | 90–280V AC in Appliance Mode / 170–280V AC in UPS Mode |
| Nominal Input Frequency | 50Hz / 60Hz, auto detection |
| Maximum AC Input Voltage | 300V AC |
| Transfer Time | 10ms |
| Supported Power Sources | Solar, Battery, Utility and Generator |
| Output Source Priorities | Utility First / Solar First / SBU Priority / MKS Priority |
| Charging Source Priorities | Solar First / Solar and Utility / Solar Only |
Display & Protection
| Display | LCD display with function buttons |
| AC Output Connection | Hardwired AC output and built-in output receptacles |
| Anti-Dust Kit | Optional removable anti-dust filter |
| Automatic Restart After Overload | Configurable |
| Automatic Restart After Over-Temperature | Configurable |
| Over-Temperature Protection | Supported |
| Short-Circuit Protection | Supported |
| High and Low Voltage Protection | Supported |
| Fault and Warning Display | LCD fault codes with audible alarm |
Product specifications are based on the latest available technical documentation. Installation must be completed by qualified personnel in accordance with local electrical and safety regulations.