Review on 🔌 BESTEK 500W Pure Sine Wave Power Inverter DC 12V to 110V AC Car Adapter Converter with Dual USB Ports, 2 AC Outlets, Car Charger - ETL Listed, Grey by Mark Hayes

I like Bestek products and have a few of them, two of my favorite inverters are 400w and 1000w modified sine waves but as they are modified their use is limited. I was hoping that pure sine would work as well, I've recently bought 300w and 500w models. I noticed that on both of them the voltage drop is too high for the operation of small electronic devices, on modified versions this problem does not arise. I am keeping 300 because if used in your car with a constantly charged battery you will be fine but if you use any of the pure sine wave inverters in the battery application your run time will be very limited because they are not efficient at all are. That's bad, I wanted to like them, but if you invest good money in a portable inverter system, these inverters will be your weakest link. I've been wanting to buy a new 1000 watt model but for now I'm not worried, I've read the reviews of these devices and either I have two broken devices or the people using them don't have a volt and current meter. To show them how much juice they're pulling, I tend to think it's the last one. If they work for you, great, but if someone wants to build a portable system and understands the uptime and efficiency, don't worry until Bestek improves the game and fixes the problem with them, you will be unhappy with the loss of voltage.