300 Watt Pure Sine Wave Inverter

 

 

300W Pure Sine Wave Inverter：WZRELB SE-300W pure sine wave inverter delivers clean, grid-quality 110V/120VAC 60Hz AC power, with 300W continuous power and 600W peak surge power, converting 36VDC to standard AC power for your electronics and appliances. It is the ultimate travel-sized power solution, purpose-built for charging personal electronics on the go, whether for business travelers keeping laptops charged during long drives, or weekend road-trippers powering phones, drones, and portable speakers. Its true pure sine wave output eliminates buzzing, flickering, and overheating risks caused by cheap modified sine wave inverters, ensuring safe power supply for all your devices.

 

This inverter outputs standard 110V/120VAC at 60Hz, which is the universal electrical standard used in North America (USA, Canada, Mexico), Japan, and parts of Central and South America. It is fully compatible with all standard North American appliances, power tools, and electronics using Type A/B (NEMA 5-15) plug outlets, perfectly meeting your needs for American RV appliances, US-spec construction tools, or home backup power in the Americas.

 

The 36VDC input version is professionally designed for 36-volt battery configurations, most commonly found in electric golf carts, utility vehicles, and certain marine trolling motor setups. It can be directly connected to your 36V battery bank (three 12V batteries in series) or 36V lithium battery without additional voltage converters, maximizing energy efficiency and simplifying installation. It is ideal for golf carts, electric utility vehicles, 36V trolling motor boats, custom battery banks, and light industrial EVs.

 

The 300W continuous power can reliably run daily electronics including: Laptops (≤65W), Smartphones, Tablets, Electric Shavers, Portable Speakers, LED Lighting, Camera Chargers, Nintendo Switch and more low-wattage devices.

 

- True Pure Sine Wave Output: Delivers stable 300W continuous / 600W peak true sine wave AC output with premium pure copper inductance, ensuring safe and stable power supply for all microprocessor-based devices.

- Intuitive LED Display: Equipped with a digital LED readout, it supports real-time input voltage monitoring, allowing you to keep track of your battery's operating status at all times.

- Ultra-Quiet Smart Fan: The temperature-controlled cooling fan only activates when the internal temperature rises, maintaining a silent working environment during light load operation.

- Comprehensive Protection System: Built-in multiple safeguards against low voltage, over-voltage, overload, short circuit, over-temperature and reverse polarity, automatically protecting your connected devices and battery bank.

 

 

 

 

The SE-300W is specially designed for mobile life. Its ultra-compact and lightweight body can be easily stored in a glovebox, center console, laptop bag, or camping pouch, with excellent portability for on-the-go use. The all-aluminum alloy shell not only acts as a passive heat sink to improve heat dissipation efficiency, but also protects the internal components from bumps and drops during transportation and use.

 

 

 

 

 

 

1. Ensure the total load of connected devices does not exceed 300W continuous power to avoid inverter overload protection or damage.

2. Most car cigarette lighter sockets are fused at 150W. To use the full 300W power of the inverter, please connect it directly to the battery using the provided dedicated cables.

3. Do not touch the aluminum housing during extended high-load operation, as the housing may become hot and cause scalding.

 

Cable Note (36VDC): The 36V input significantly reduces the DC current draw, making it more practical for higher-wattage models and allowing moderate cable lengths without excessive voltage drop. The approximate max DC current at full load is ~9.8A (at 36VDC input).

Output Note: If you require Japanese 100VAC output, please contact us to confirm availability for your specific model.

 

 

Model	SE-300W
Continuous Power	300W
Peak/Surge Power	600W
Input Voltage	36VDC
Output Voltage	110V/120VAC
Output Frequency	60Hz
Waveform	Pure Sine Wave
THD	<3%–5%
Efficiency	>90%
AC Voltage Regulation	±3%
Outlet Type	Standard US-style Type A/B (NEMA 5-15) AC outlets
Housing Material	Aluminum Alloy
Cooling	Intelligent Temperature-Controlled Fan
Protection	Low Voltage / Over Voltage / Overload / Short Circuit / Over Temperature / Reverse Polarity
Warranty	12 Months

 

 

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: Single-phase output.

 

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.

 

Combining durability, high efficiency, and comprehensive safety features, this SE-300W pure sine wave inverter delivers a professional and reliable power solution for your mobile travel, outdoor adventure, and emergency backup power needs.

 

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