Choose a good 12 volt inverter, should pay attention to the following problems:

1, must use metal shell products: vehicle inverter due to large power, heat dissipation is also large, if the internal heat can not be dispersed in time, light will affect the service life of the parts, heavy will have the risk of fire. Metal shell, on the one hand has good heat dissipation characteristics, on the other hand will not burn. Plastic shell products, it is best not to choose. Even if the fan is added to help heat dissipation, one is to increase the noise in use, and the other is that the working life of the fan is generally short, reducing the reliability of the machine, once the machine is shut down for a day, the consequences may be very serious.

2, you must choose split products, can not choose integral products: integral products have four disadvantages, one is because the car lighter socket is not very deep, the back of the integral product is heavy, the car is easy to shake off the inverter or cause poor contact. Second, the integrated inverter is plugged into the cigarette lighter socket, and the back is longer, which will affect the right-handed shift operation closely related to driving safety, so be careful. Third, the back row of the integrated inverter cannot be used due to its direct insertion into the lighter socket. Fourth, the integrated shell is plastic, and we all know that plastic is not resistant to high temperature, so the contact part of the integrated inverter and the lighter socket will produce high temperature through high current, resulting in head deformation or melting, and serious fire. Therefore, both from the point of view of safety and convenience of use, can not choose an integrated frequency converter.

3, the same power product, the same volume, heavier preference: as the saying goes, a penny for a penny. The heavier weight indicates that the housing is thicker, which is conducive to heat dissipation, and also indicates that the internal transformer power margin is large, which can drive high power loads for a long time.

Various protection functions are perfect: a good vehicle inverter, should have perfect protection functions, in any case can protect your car and power. It should also have an audible and visual alarm function to remind you to deal with various situations in a timely manner. Protection functions should generally be input undervoltage protection, overvoltage protection, overheat protection, output overload protection, output short-circuit protection.

5, conversion efficiency: this is a very important indicator of the inverter, the higher the efficiency of the inverter, the longer the battery time, the smaller the heat dissipation of the inverter. In general, it should be more than 90%. However, the user cannot test this indicator, and the user can only make a simple discrimination of the heat generated by the inverter through the high-power load. A good inverter should be able to work for a long time at 80% of the rated power of the load without burning.

Lighter plug line should be thick, the length should be convenient: in order to save costs, the current products on the market are generally not long wiring, that is, 0.5 meters, the use of the back row is not so convenient, personally feel that the wiring is still long, more convenient to use.

7, when the power is greater than 150W, be sure to use the battery clip directly from the battery: the car lighter socket can only pass about 10A current, so the high-power inverter must be equipped with another battery clip directly from the battery. Now some manufacturers in order to save costs, 300W products are not equipped with battery cable, the use of this product, light will burn the car's wire, heavy will cause a fire, please pay attention to the majority of owners.

8, pay attention to the output socket form: to be able to use the national standard two-phase, three-phase plug. 90% of the products on the market only have American standard three-phase sockets, which is very inconvenient to use. Although the matter is small, it can highlight the strength of the enterprise, I believe that the output of national standard socket and universal socket products should be the first choice.