Products Description
Pure Sine Wave Power Inverter：WZRELB SE-300W is the ultimate travel-sized pure sine wave inverter, purpose-built for charging personal electronics on the go, with ≥90% conversion efficiency. It provides 300W continuous output (600W surge power), converting 24VDC to 220V/230V/240VAC at 50Hz, fully matching the electrical standard used across Europe, the UK, most of Asia, Africa, Australia, New Zealand, and the Middle East. The all-aluminum shell doubles as a passive heat sink while protecting internals from bumps and drops, ensuring reliable performance for heavy-duty trucks, large RVs, marine craft, and medium solar arrays.
WZRELB SE-300W Power Inverter features an intuitive digital LED display for effortless power monitoring, allowing you to track real-time DC input voltage and keep full awareness of your battery bank's condition at all times-making it an excellent choice for dual-battery setups, commercial vehicles, and off-grid mobile power needs. The inverter includes comprehensive safety protections such as low voltage, over-voltage, overload, short circuit, over-temperature, and reverse polarity safeguards to protect both your devices and the unit itself. Additionally, its ultra-quiet smart cooling fan only activates when internal temperature rises, keeping silent operation during light loads.
The 300W Pure Sine Wave Inverter delivers stable true pure sine wave AC output with premium pure copper inductance, eliminating buzzing, flickering, and overheating risks caused by cheap modified sine wave inverters, effectively protecting all microprocessor-based devices and extending their lifespan. Equipped with universal AC outlets (customizable EU/UK/AU plug types when ordering), it is fully compatible with European-spec appliances and electronics, ideal for business trips, road trips, outdoor camping, and medium-duty mobile power supply scenarios.
Utilizing advanced high-frequency pure sine wave technology, this power inverter delivers clean, grid-quality AC output, rated at 300W continuous power. Its 24VDC input version is optimized for medium-duty applications, running two 12V batteries in series or a native 24V lithium pack, cutting DC amperage in half compared to 12V systems, with thinner cables, less voltage drop, cooler connections, and longer cable runs. It features universal compatibility with 24V battery banks including series-connected 12V lead-acid batteries and 24V lithium batteries.
Precautions
1. Ensure the total load of connected devices does not exceed 300W continuous power to avoid overload damage to the inverter.
2. Most car cigarette lighter sockets are fused at 150W. To use the full 300W output, connect the inverter directly to the battery using the provided standard cables.
3. Do not touch the aluminum housing during extended high-load operation, as the surface may become hot due to heat generation.
4. With half the amperage of 12V systems, the 24V version allows for more practical cable sizing and longer cable runs from the battery bank to the inverter, with a maximum DC current of ~14.7A at full load.
5. The inverter is single-phase output only, and its 220/230/240VAC output cannot be divided into two separate 110V/120V circuits.
Combining portability, efficiency, and advanced features, this pure sine wave inverter delivers top-tier power solutions for personal electronics, mobile charging needs, and low-wattage appliance use in travel, commercial vehicles, and off-grid scenarios
Function description
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The SE-300W provides robust protection through a comprehensive 360° safety system:
Additional Features: - True pure sine wave output with THD <3%–5% and AC voltage regulation ±3% for grid-quality power - Real-time digital LED display for intuitive 24V DC input voltage monitoring - Ultra-quiet temperature-controlled smart cooling fan for light-load silent operation - Premium pure copper inductance for clean, distortion-free pure sine wave output - Universal AC outlet with customizable plug types (EU/UK/AU/etc.) for regional compatibility - All-aluminum alloy housing for passive heat dissipation and anti-collision protection - Optimized 24V input for lower amperage, less voltage drop and longer cable runs |
Compact size
Designed for life on the move, the SE-300W features an ultra-compact and lightweight body that fits neatly into a glovebox, center console, laptop bag, or camping pouch. Its space-saving form factor and all-aluminum shell ensure exceptional portability and easy storage, while providing reliable passive heat dissipation and impact resistance, integrating seamlessly into any mobile scenario-whether for:
Commercial vehicle travel and heavy-duty truck on-board power
Large RV trips and marine craft mobile power supply
Medium solar arrays and dual-battery off-grid setups
Emergency preparedness and outdoor camping adventures
The inverter reliably powers a wide range of low-wattage devices including:
✓ Digital devices: Laptops (≤65W), Smartphones, Tablets, Camera Chargers, Drone Chargers, Nintendo Switch
✓ Personal care: Electric Shavers, Portable Beauty Devices
✓ Entertainment & lighting: Portable Speakers, LED Lighting, Mini Portable Projectors
✓ Small daily appliances: Mini USB Fridges, Portable Air Purifiers
With its perfect balance of 24V system optimization and practical portability, this inverter serves as an essential power companion for all your medium-duty mobile charging and low-wattage power needs.
Technical Specifications
| Parameter | Value |
|---|---|
| Model | SE-300W |
| Continuous Power | 300W |
| Peak/Surge Power | 600W |
| Input Voltage | 24VDC |
| Output Voltage | 220V/230V/240VAC |
| Output Frequency | 50Hz |
| Waveform | Pure Sine Wave |
| THD | <3%–5% |
| Efficiency | >90% |
| AC Voltage Regulation | ±3% |
| Outlet Type | Universal AC outlet (please specify your required plug type when ordering: EU/UK/AU/etc.) |
| Housing Material | Aluminum Alloy |
| Cooling | Intelligent Temperature-Controlled Fan |
| Protection | Low Voltage / Over Voltage / Overload / Short Circuit / Over Temperature / Reverse Polarity |
| Warranty | 12 Months |
Frequently Asked Questions
Q: Can I add a fuse or circuit breaker between the inverter and battery?
A: Yes, and we strongly recommend it. Calculate: Continuous Power ÷ Lowest Input Voltage = Minimum Fuse Rating.
Q: Why do sparks appear when connecting the battery cables?
A: This is normal. The inverter has internal capacitors that draw a brief charge current upon first connection. It does not indicate a malfunction.
Q: Why does the output voltage drop or the inverter shut down under load?
A: Check: (1) Fuse/breaker is not undersized, (2) All included cables are connected, (3) Battery capacity is sufficient, (4) Cable gauge is appropriate for the current draw.
Q: Why can't my inverter start the refrigerator?
A: Refrigerator compressors are inductive loads with startup surges 6–10× their running wattage. We recommend choosing an inverter with continuous power at least 3–7× the fridge's rated wattage.
Q: Is the output single-phase or split-phase?
A: All SE Series inverters are single-phase output only.
Q: How do I choose between 12V, 24V, 48V, or higher input voltage?
A: Higher input voltages draw less current, allowing thinner cables and longer cable runs. For inverters ≥2000W, we recommend 24V or 48V input. For industrial applications, 96V or 110V input is ideal.
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| Specification Data | ||
| Model | SE-300W | |
| Input | DC Voltage | 24V |
| Voltage Range | 21-30VDC | |
| No Load Current Draw | ﹤15W | |
| Efficiency | > 90% | |
| DC Connector | Cables With Terminals | |
Output |
AC Voltage | 220V/230V/240V |
| Continuous Power | 300W | |
| Surge Power | 600W | |
| Frequency | 50Hz | |
| Waveform | Pure Sine Wave | |
| AC Regulation | <3% | |
| Protection | Low Voltage Alarm | 18.5-20.5V |
| Low Voltage Shut Down | 19.5-21.5V | |
| Over Load | Shut Off Output | |
| Over Voltage Shut Down | 18.5v | |
| Over Thermal | Shut Off Output Automatically | |
| Fuses | Short Circuit | |
| Environment | Working Temperature | -10℃ TO 50℃ |
| Working Humidity | 20% ~ 90% RH non- condensing | |
| Storage Temperature | -10℃ TO 70℃ | |
| Others | Start | Soft Start |
| Cooling Ways | Cooling Fan,Inverter all-aluminum housing | |
| Total Harmonic Distortion | THD < 5% | |
| Pack | Machine size | 2230*1220*740MM |
| Net Weight(kg) | 1.06KG | |
| Packing Type | Carton Packing | |