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  • Q Is sinemax inverter weatherproof?

    A No. Treat your off grid inverter like you would your TV. You wouldn’t put your TV outside in the rain, please don’t leave your inverter there either. Be aware of lighting storms. If struck, your inverter would go into a permanent overload state and may even smoke it. If using in a marine environment, try to keep it tucked away underneath, in a dryer area.

  • Q What is the Low Voltage Alarm & Shutdown?

    A The low voltage alarm will sound when the DC source falls below 10 volts and the automatic shutdown will power off the inverter. This is done to save your battery(ies) so you can restart your vehicle.

  • Q what’s the difference between traditional off grid inverter and others in the market?

    A the traditional off grid power inverter, like sinemax inverter, only can be convert DC to AC power without charging function (AC-DC)for the battery.We ’ re now developing the bidirectional inverter to meet popular market demand.

  • Q can sinemax power inverter be used for solar off grid system?

    A Yes, our power inverter can be used for a basic solar of grid system like below. It include the solar pannel, the MPPT charge controller, the battery and the power inverter.
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  • Q What are the important things when using a power inverter?

    A The power inverter output voltage is 220V AC or 110V AC. When in a relatively small space and moveable state, people should pay special attention to it. It is best to place a power inverter in a safe place to prevent electric shock. When not in use, be sure to cut off its power. A power inverter cannot be placed in a warm air outlet or near the location or direct sunlight. Other objects cannot be placed on the power inverter or nearby. Don't put it in rain or sprinkled with water, mainly because of the power inverter is very afraid of the water, it may damage if water enters.

  • Q What size of a power inverter do I need for my RV?

    A It depends on the actual load power of the RV. As to high-power electrical appliances such as air conditioners and refrigerators, the starting current is equivalent to 3-9 times the average working current, and then it is required to select an power inverter with higher power. Taking the 24V 3000W inverter as an example, if the sum of the rated powers of the loads to be used in the RV at the same time is no more than 2800W, the 3000W can guarantee a stable current. It should also be noted that to prolong the inverter's service life, do not operate it at full load for a long time, and do not use the inverter in a condition exceeding 80% of the rated power.
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  • Q what’s the application for the pure sine inverter?

    A The pure sine power inverter normally can be used for solar power system as the back up power supply, like the outdoor camping, the trailer,RV, boat, cabin and remote farm etc.

  • Q What is the efficiency of a power inverter?

    A When it works the power inverter will consume a part of the input power. The output power will be lower than the input power. The efficiency of the power inverter is the ratio of output power and input power. If the input power is 100 watts (from DC power), and the output power is 80 watts (for AC power). Then the efficiency of the power inverter is 80%. When we use a power inverter, it is better not to power the device for more than 80% of the rated power, and not to be continuously used for a long time.
TESTIMONIALS
WHAT OUR CLIENTS SAY
  • “Their off grid pure sine power inverter compiance with (UL458)on first try. The dual China-Thailand production let us scale from 500 to 5,000 units/month without quality dips. More than a vendor – a power partner.”
    Jack Wilson-CEO Energy Solutions 26 March, 2025
  • “Ordered 8,000 custom 3000W inverters with our branding and 50°C thermal specs. Sinemax’s Thailand factory delivered zero defects while cutting lead times by 40%. Finally, an Asian supplier that understands ‘rush’ means yesterday!”

    Brian Murdoch– Supply Chain Director  11 December, 2024
  • ”Initially, concerns existed about Chinese factories' communication efficiency, but Sinemax's team addressed them with English - fluent engineers and daily production photos. When the first batch of 2,000 12V 3000W inverters arrived, three had scratched casings. They swiftly air - freighted replacements within 72 hours - faster than our local suppliers.“ Richard Smith-Outback Mining Tech 09May, 2025
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