FAQs & Helps

• How big inverter/UPS should I buy?

  Short answer: the model you choose depends on the watts of what you want to run. We recommend you buy a larger model than you think you'll need totally (at least 10% to 2.........

• What do inverter & UPS do, and what can I use them for?

  The full name of UPS is uninterruptible power supply. Inverter & UPS can charge batteries when utility power is normal and transfer DC power from batteries into conve.........

• Do I need UPS when I live where seldom power failure happens?

  UPS not only supplies AC power to loads while utility power failure, but also protects against unsteady utility power. It purifies AC power and provides overall power pro.........

• How many kinds of power problem?

  In fact, power failure is only one of power problems; the other ones such as high voltage, low voltage, spikes, sags & surges and noises & transients would damage.........

• What are the difference between inverter & UPS?

  Inverter (except for online inverter) takes about 4-6ms to transfer DC power to AC power when utility power is failing or abnormal, but UPS (online UPS) takes zero, there.........

• What is called online UPS?

  Online UPS takes no time to transfer DC to AC output, it supplies power after rectification and transfers to bypass only when UPS is out of order, overload or overheat. O.........

• Do I need a modified sine wave or a pure sine wave inverter?

  There are three major types of loads: resistive load (lamp); capacitive load (computer) & inductive load (motor). All these types of load can be used with pure sine w.........

• Which type of battery should I use?

  We recommend you to use VRLA, deep cycle or GEL batteries which will give you several hundred complete charge/discharge cycles, these kinds of battery are sealed so that .........

• What is life span of batteries of your standard UPS?

  We install VRLA batteries for our standard UPSs, life span of batteries is affected by ambient temperature and frequency of charging and discharging. Higher ambient tempe.........