Your cart is empty.
Your cart is empty.Product Description
BESTEK 300W pure sine wave inverter
BESTEK 300W pure sine wave power inverter DC 12V to AC 110V automotive inverter. Car charger with 4.2A dual USB charging port and 2 AC sockets. Provide multiple protections such as overvoltage and overload. The built-in intelligent fan can cool down at high temperature and is very quiet during operation. ETL is listed.
BESTEK Advantage
America's Power Inverter Brand Manufacturer( Stock Code:833663 ) ,Which is Mainly Focusing on the R&D, Design,Manufacture,Oversea Sale and Integration Since was Founded in 2007.The Main Products is Power Inverter,Power Strip,Travel Voltage Converter.With more than 1000 Domestic and Oversea Patent Technology for these Products.
BESTEK 300W pure sine wave inverter
Very suitable for off-grid systems with low total harmonic distortion and low wear.2 USB ports and dual 110V AC sockets It has a reasonably placed thermal protection sensor, a small amount of corrugated aluminum alloy shell, a unique ventilation hole and a built-in fan, with low noise and good heat dissipation.
- Reduce EMI interference, isolate voltage protection
- Overvoltage, undervoltage, overheat, overload, reverse polarity and short circuit protection
- Ideal for RV, camping, road trips, CPAP machines, air cushions, wireless tools
Perfect for CPAP machine, nebulizer, breast pump
DC to AC Pure Sine Wave Inverter
Pure sine wave inverter to protect your electronic devices and provide reliable power when on the move,it gives no noticeable evidence of RF interference.It produces very little EM noise, which is important if you run line level analog audio.Pure sine wave help electronics less wear ,kept sensitive electronics running smoothly to avoid the Modified sine wave inverters which tend to damage electronics.As a clean power source or an AC motor, laptops, and sound system to use.This vehicle inverter takes the guesswork out by providing a pure sine wave just like the power coming out of the outlets in your house.
Replaceable fuse
The product includes two spare 2 x 40 amp/32V fuses, externally replaceable fuses, which provide protection when connected to the battery, and can be easily removed/replaced from the back of the inverter; when hung at the point When the cigarette lighter is on, it will use a 15 amp fuse for the car. It not only has a built-in insurance function, but also has a reverse polarity protection function. When the positive and negative poles of the battery clamp cable are reversed, the diode inside the article is equivalent to direct conduction, which will generate a large current. At this time, the fuse is blown to prevent damage to the items. In this case, users can still replace fuses of the same specifications.
Durable Aluminum Alloy Case Heatsink
The aluminum casing has some ripples, which may mean that there are actual heat sinks around the transformer, shockproof, compact design and anodized aluminum casing. It has a well placed thermal protection sensor and a rugged heat sink.
Easy to Use
Method 1: Connect with Alligator Battery Clamps
The power supply and battery are used as backup power for the inverter. To use power from 150 watts to 300 watts, it must be connected to the car battery. The current consumption is 0.005 A in the closed state and 0.3 A in the open state. Therefore, do not insert it into the car when not in use. The battery clip is very strong, similar to a jumper cable clip. Not a backup battery, this is a power inverter and requires a battery to operate.
Method 2: Connect with Cigarette Lighter Plug
It can convert AC power for use in the watt range. Whether you want to use its power source, you can use the cigarette lighter plug to power the battery to pull the crocodile-shaped battery clip out or directly onto the car battery. The 12v cigarette lighter socket provides continuous DC to AC power without draining the battery due to insufficient voltage. The 12V plug is spring-loaded and can be firmly inserted into the socket. The 12-volt cigarette lighter plug cannot provide 300 watts of power and requires an alligator clip for car batteries. If you want to plug it into a car cigarette lighter, you should keep the power below 150, because this is the purpose of most car fuses.
Power LED light
outdoor camping and other festivals, it can power your LED lights anytime, anywhere, creating an excellent atmosphere and making your journey more relaxing and enjoyable.
S. T
Reviewed in the United States on January 26, 2025
I can't speak for it's longevity, but my initial impression is that it seems very well made
Eric Smith
Reviewed in the United States on January 25, 2025
This is the second one I have owned. As long as you remember that it is a high frequency inverter, it will last u many years. Very low idle power consumption when on.
Alexander I
Reviewed in Canada on August 8, 2024
The only issue I have with this device is the fan is always running regardless of the power draw. This seems like a waste of battery power to me. Other inverters I have used only seem to turn the fan on when the draw increases past a certain point.
Jeff Purisima
Reviewed in Canada on July 1, 2024
Can’t handle 110 watts fridge. It tripped and red light come out. It only works on a very small wattage like phones. Waste of time. Or I got the faulty one.Update: Customer service was excellent they resolved the problem very quick.Highly recommended.
Outdoor Adventurist
Reviewed in Canada on May 9, 2024
Acquired this device to power a PC computer and monitor. Both items appear to be working without any problem at all. The inverter itself had a problem with its fan, which made a slight buzzing noise while running, so Bestek immediately sent me a replacement inverter. The new inverter works flawlessly. To summarize, the inverter works great and Bestek customer service is awesome! Would buy again from Bestek.
Holly & Kurt
Reviewed in Canada on September 14, 2023
Runs our Starlink system & TV in our office grid set up.
Gracie
Reviewed in Canada on December 12, 2023
Works well so far and has made work a breeze
Ian
Reviewed in the United States on August 9, 2020
I’m quite impressed with this inverter and the design of it. Here are some of my observations from it:The fuse holder and 5-15R receptacles have PCBs on the back of the terminations to connect to wire instead of soldering the wires directly to the connectors, a very nice touch! The ground is bonded to battery negative and the chassis, but the neutral isn’t bonded to ground (more on this later). On the PCB they use silastic to secure the LC filter to the PCB so it’s not rattling around. The FETs and diodes in the inverter use actual heat sinks instead of being thermally bonded to the chassis, which is very good, this keeps the chassis cool while still cooling the components. Verified the output waveform on a oscilloscope and its a 60 hertz sine wave with minimal voltage ripple on the output so the low pass filter is designed well. The input and output capacitors are 105C rated, and the high and low voltage circuits on the PCB are isolated with isolation slots cut on the PCB, all in all a very well designed inverter and decent quality. I did find a few improvements they could’ve done as well, one thing is they could make the fan thermally controlled so it only turns on when the inverter heats up, as is it runs constantly and never turns off. Another suggestion is to make the inverter 120V single phase instead of 120V split phase (for the uninitiated this means use 1 120V rail instead of 2 60V rails that are 180 degrees out of phase). Also I would like to see higher voltage rated input capacitors, the ones on the input DC bus are only 16V rated, which a car alternator can easily exceed in low temperatures, I would like to see 25V rated capacitors used instead. I’m quite happy with this product and wish more of the affordable inverters on the market would design their products to these standards. Great job Bestek!
J.E.
Reviewed in the United States on August 2, 2020
When it comes to 12VDC to 110VAC converters, Bestek pure sine wave models (be careful what you purchase as many of their models look similar on the outside chassis or frames but are NOT pure Sinewave) are a very good value and work as advertised. You may wonder why so specific on Pure Sine Wave model only? Well, when you use an inverter to AC power ANY sensitive electronics such as computers, tablets, personal medical equipment, communications equipment, etc... you should provide clean pure sine wave power source. If you do NOT, you run the risk of (a) the devices not working at all, (b) destroying the sensitive electronic product by way of feeding it dirty, spiky AC power (even if it does power the device up) at any point in time that a voltage surge or spike occurs as it is unregulated if not providing pure sine wave alternating current (AC), (c) you may be able to power things like air pumps, fans, (electric motors) whereas most NOT puresinewave inverters cannot or do so with that weird, annoying and ineffective ramping and falling syndrome - they also MAY permanately damage and/or ruin your electric motor(s) if NOT puresinewave. The Bestek pure sine wave inverters work as advertised, and this particular model is a solid build with aluminum casing to dissapate heat more effectively than plastics. Make a note that the unit will get very warm when powering AC devices that are more than >75 watts so you want to make sure you do NOT place the unit for operations on or near any surface that may not tolerater heat very well. We place the unit on the floorboard carpet rather than on the center console armrests to be safe from any cosmetic damage to the armrest soft materials. Also, bump up to the 500 watt pre sine wave inverter if you have a plan to power anything AC that consumes anything >100watts from cig plug. Cig plugs are most often fused in your car with a 10AMP max fuse. That said, if you pull above 100watts continiously for any length of time beyond 5 minutes a couple things are at risk (a) you may trip the fuse in your car and will have to replace (which can be a big hassle for some people) and (b) will create HEAT at the plug in, power cabling and unit itself as it converts DC12-13V into AC 110 V in higher wattages. The 300watt is designed itself to handle the output, the cig sockets, plug and cabling to/from most factory cig outlets are suspect. Lastly, if you are going to pull more than about 100watts from the invertor you really should use the INCLUDED battery clamps instead of the cig socket adapator. My recommendations come from experience, and are not all-inclusive or absolute -they are our recommendations/suggestions that ALWAYS work for us with no hassles and no complications. We find this inverter very convenient when we camp, and use it in all kinds of different configurations to mainly power AC devices (for us under 150Watt max requirement) that have no direct DC (or external battery) inputs.
Brian B. Donaldson
Reviewed in the United States on April 14, 2020
This is not a review.This is to give numbers so if a musician (or anyone with a sound system) decides to use their amp with an inverter, one will know approximate numbers.Amp used - Boss Acoustic Singer Pro 100W - Power Requirements 110VAC 50WBestek 300W Pure Sine Wave InverterBattery - Raion RG12220FP - 12VDC 22AH (20Ah 10.5V SLA-AGM)Current tester - Extech 380947 clamp on current meterBattery connected to Inverter, Invert ON - .7A idle (Fan is running and USB power ports active)Side note - With Invert off but connected to battery and cell phone connected, .4A drawAmp Connected and turned on - 2.7A draw (2.8A with cell phone connected)Playing @50% vol, 2.7A constant - 3.0A on hard sturmmingBased on this formula: 1A @12VDC will equal to 10W of AC power. In this case, the amp draws 50W which will require 5A from the battery. So based on those figures, I should get about 2~3 hours (don't forget efficiency calculations) of usefulness.However, based on the numbers above, it look like maybe 4~5 hours if no one else is plugged in. I did not test with a microphone but I suspect the draw will not be much more than 3A with a possible max peak of 4 amps.Added - CAUTION - the inverter is storing energy. Once turned off and disconnected from the battery, there is still the potential hazard of sparks flying if the (+) and (-) leads from the inverter touch. I did not test to see how long the energy is stored or if there is a bleeding resistor installed.So if you are a musician or an entertainer who uses a sound system, this inverter will power a 100W amplifier for several hours (based on the AH of the batter used).
Recommended Products