--- product_id: 219372469 title: "BESTEK 500W Pure Sine Wave Power Inverter DC 12V to 110V AC Car Plug Inverter Adapter Power Converter with 4.2A Dual USB Charging Ports and 2 AC Outlets Car Charger, ETL Listed, Blue" brand: "bestek" price: "540.93 DT" currency: TND in_stock: true reviews_count: 13 category: "Bestek" url: https://www.desertcart.tn/products/219372469-bestek-500w-pure-sine-wave-power-inverter-dc-12v-to store_origin: TN region: Tunisia --- # 500W pure sine wave power 2 AC outlets + 2 USB ports (4.2A max) Multi-layer safety protections BESTEK 500W Pure Sine Wave Power Inverter DC 12V to 110V AC Car Plug Inverter Adapter Power Converter with 4.2A Dual USB Charging Ports and 2 AC Outlets Car Charger, ETL Listed, Blue **Brand:** bestek **Price:** 540.93 DT **Availability:** ✅ In Stock ## Summary > 🔋 Power your on-the-go lifestyle with pure, reliable energy—never miss a beat! ## Quick Answers - **What is this?** BESTEK 500W Pure Sine Wave Power Inverter DC 12V to 110V AC Car Plug Inverter Adapter Power Converter with 4.2A Dual USB Charging Ports and 2 AC Outlets Car Charger, ETL Listed, Blue by bestek - **How much does it cost?** 540.93 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/219372469-bestek-500w-pure-sine-wave-power-inverter-dc-12v-to) ## Best For - bestek enthusiasts ## Why This Product - Trusted bestek brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Robust Safety Suite:** Built-in protections against overload, overheat, under/over-voltage, reverse polarity, and short circuits keep you worry-free. - • **Compact, Cool & Quiet Design:** Aluminum casing with smart ventilation and a silent fan ensures reliable performance without overheating or noise. - • **Dual AC & USB Charging Ports:** Power multiple devices simultaneously with 2 AC outlets plus 2 smart USB ports charging up to 4.2A max. - • **Flexible Power Source Options:** Plug into your car’s 12V cigarette lighter or connect directly to the battery with included clamps for up to 500W output. - • **Seamless Pure Sine Wave Output:** Delivers clean, grid-quality AC power for sensitive electronics—no buzzing, no glitches. ## Overview The BESTEK 500W Pure Sine Wave Power Inverter converts your vehicle’s 12V DC into clean 110V AC power, supporting sensitive electronics with minimal interference. Featuring 2 AC outlets and 2 fast-charging USB ports, it offers versatile charging options. Its advanced safety features protect your devices and vehicle, while the compact, fan-cooled design ensures quiet, efficient operation. Ideal for camping, DIY power stations, and emergency backup, this ETL-listed inverter balances portability with professional-grade performance. ## Description Buy BESTEK 500W Pure Sine Wave Power Inverter DC 12V to 110V AC Car Plug Inverter Adapter Power Converter with 4.2A Dual USB Charging Ports and 2 AC Outlets Car Charger, ETL Listed, Blue: Power Inverters - desertcart.com ✓ FREE DELIVERY possible on eligible purchases Review: A couple of things you don't read about - The two fuses in mine are 40 amp. They make a point that you do not want to hook something up to it that is more than 150 watts if you're using the cigarette lighter in your car. I decided to be on the safe side and replace the 40 amp fuses with 15 amp fuses. I could even go down to 10 amp if I want to make real sure that I have overload protection on a sensitive piece of equipment that I connect up to it. The math on this is very straightforward. A 12 volt battery times a 15 amp fuse is equal to 180 watts. This will keep you within the range of 150 watts of the car. If you want to go lower than that then you could put in a 10 amp fuse and that would end up triggering if something exceeds roughly 120 watts. The point needs to be made that if you really want to take advantage of the full full power of this then you want to use the clips directly on your car battery or on a 12-volt off-grid battery. In this way whatever you're running up to 500 watts will simply drain the battery down to the low warning cutoff. You can always put the 40 amp fuses back in there. You use the fuses in the same way you would use a circuit breaker in your house. if you want to make sure to really protect your equipment then simply go with a lower fuse whether you're using a cigarette lighter on the car or you're using a separate off-grid battery sitting in your tent or in the corner of your house when the power goes out. This would apply to situations where you're running your computer or a CPAP machine and you want to make sure that there is no overload. And, you can see that by using fuses you can buy a 500 watt inverter like this and simply tone it down to where it's going to act more like a 120 to 180 watt inverter. // The inverter that I would love to buy is the one that would come with a tiny little LED screen that reads the voltage on the battery when an off-grid mode and not connected to the vehicle. I charge my batteries to around 13.5 to 14.4 volts. It would be lovely to have an inverter that automatically reads the voltage of the battery so that I could keep an eye on things and make sure that I'm prepared to recharge the battery when it gets down around 11.5 volts. As it is I purchased a inline DC voltmeter so that I can do that, but it's terribly cumbersome and annoying so I took the thing off. IT IS EQUALLY ANNOYING TO HAVE TO USE MY CLAMP VOLTMETER to determine where my battery is at. I highly recommend this for people that live in apartments and are willing to go out and spend the money to buy a 35 amp hour to 100 amp hour battery for emergency purposes. If you find yourself trapped in a city with no power for a couple of days this inverter will prove to be worth its weight in gold or maybe five times its weight in gold because it's a very light inverter. So if you have this and you have a well charged battery you can be guaranteed that your CPAP equipment may run, you can charge your cell phones, and I'm sure there will be other uses. I highly recommend this one because each AC outlet has its own fuse holder. ___________ I took it out of the box, hooked it up to a 35Ah battery, and attached a coffee heater. It works. I still have some equipment tests to run should I need it for an emergency. My voltmeter at the plugs said 116V ac. Being pure sine wave I am very happy to get this. It will likely prove useful in my car for charging batteries for tools on trips. The 500 watts at a price point of $70 is fine with me. My next test will be the drain on my battery for certain items. My need is mostly emergency when we have NO power and I might want to run some lights. This is not the sort of thing you want for running fridges and microwaves. This is excellent for running particular pieces of medical equipment due to low load requirements. Could be very useful in some foreign countries where you might need to siphon energy off of a car battery. Review: Bestek 500 watt Inverter works perfect and a great value - I have been extremely happy with the quality and performance of multiple Bestek inverters I've purchased. They run cool, perform great and have exceeded my expectations. I highly recommend Bestek inverters as a more afforadable option to other name brands without sacraficing quality or function. In addition, Bestek has top notch customer service and actually cares about after sales support. They are very responsive by email with support questions being answered in hours not days or weeks. If you like to tinker with solar projects and you're on a budget, like me, but still want a quality product that is well supported at very competetive price, give Bestek a try. You'll appreciate the experience, value and support. I wish more companies were like this. ## Features - BESTEK 500W Pure Sine Wave Car Inverter:Its output waveform is same as the AC power waveform of mains power grid which delivers a smoothly-varying sine wave for sensitive electronics provided by the electric utility.Perfects for off-grid system,Lower THD,Less wear,Strong inductive Loads Capability.It has little interference with radios, communication and precision equipment.It's also recommended by most cordless tool manufacturer that a pure sine wave inverter is used to ensure long battery life - This is an inverter converting DC from your car battery to AC for whatever you want to use within its Watt range.It can pull power from the battery through the cigarette lighter plug or directly clamp the alligator battery clips onto the car battery.Plug this into 12v cigarette lighter outlet provides continuous DC to AC power with 2 AC outlets operates any 110v device and 2 USB ports which detects your device automatically to deliver its fastest charge speed up to 2.4 amps per port/4.2 amps max - The Sine Wave Inverter has well placed thermal protection sensors,The aluminum alloy casing with a few ripples,Unique vents and also a built-in FAN which comes ON under NO any loads or when the Inverter becomes Hot Once Powerred. It has 2 x 40 amp/32V external replaceable fuse for protection when hooked up to your battery,readily accessible/replaceable from the back of the Inverter;when hooked to cigarette lighter it will use 15 amp fuse designated to your car. - Isolated Voltage Protects Perfectly for your device from Over-voltage,Under-voltage,Overheat,Overload,Reverse Polarity,Short circuit.it will not drain your battery dry because of an under-voltage protection point.The Inverter does automatically sense overload condition and shuts down AC power when the load exceeds 500W.You will need to power Off/On to reset the overload condition indicated by the Flashing Red.The ON-OFF switch only works for the 3-prong plugs. - The 12V plug is spring-loaded and fits snugly into the receptacle.You cannot get 500 watts from 12volt cigarette lighter plug,needs alligator clips for car battery. If you're going to be plugging this into car cigarette lighter,you should keep the wattage under 150,since that is what most car fuses are set for.What You Get:1xBESTEK 500W Pure Sine Inverter,1xUser Manual,2xbattery clamps cable,1x 12V cigarette Lighter plug cable,2 x spare fuses. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B086SCMVF9 | | Antenna Location | Vehicle | | Battery Capacity | 12 amp_hours | | Best Sellers Rank | #6,420 in Automotive ( See Top 100 in Automotive ) #17 in Power Inverters | | Brand | BESTEK | | Built-In Media | plugs | | Cable Length | 2010 inches | | Color | 3 Blue | | Customer Reviews | 4.5 out of 5 stars 3,356 Reviews | | Electrical Output Waveform | Pure Sine Wave | | Energy Specifications Met | ETL | | Frequency | 60 hertz | | Input Voltage | 12 volts | | Inverter Capacity Volt-Amp | 500 | | Item Weight | 2.2 pounds | | Manufacturer | BESTEK | | Mfr Part Number | MRZ5011BU-BL | | Model Name | MRZ5011BU-BL | | Model Number | MRZ5011BU-BL | | Number of Outlets | 4 | | Output Power | 500 watts | | Output Voltage | 12 volts | | Peak Output Power Watts | 500 | | Power Source | DC | | Recommended Uses For Product | Vehicle | | Standby Power Shutoff | 90 | | Unit Count | 1 Count | | Voltage | 110 volts | | Wattage | 500 watts | ## Product Details - **Battery Capacity:** 12 amp_hours - **Brand:** BESTEK - **Power Source:** DC - **Recommended Uses For Product:** Vehicle - **Wattage:** 500 watts ## Images ![BESTEK 500W Pure Sine Wave Power Inverter DC 12V to 110V AC Car Plug Inverter Adapter Power Converter with 4.2A Dual USB Charging Ports and 2 AC Outlets Car Charger, ETL Listed, Blue - Image 1](https://m.media-amazon.com/images/I/71ziQshiJnL.jpg) ## Available Options This product comes in different **Color, Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ A couple of things you don't read about *by W***R on May 23, 2020* The two fuses in mine are 40 amp. They make a point that you do not want to hook something up to it that is more than 150 watts if you're using the cigarette lighter in your car. I decided to be on the safe side and replace the 40 amp fuses with 15 amp fuses. I could even go down to 10 amp if I want to make real sure that I have overload protection on a sensitive piece of equipment that I connect up to it. The math on this is very straightforward. A 12 volt battery times a 15 amp fuse is equal to 180 watts. This will keep you within the range of 150 watts of the car. If you want to go lower than that then you could put in a 10 amp fuse and that would end up triggering if something exceeds roughly 120 watts. The point needs to be made that if you really want to take advantage of the full full power of this then you want to use the clips directly on your car battery or on a 12-volt off-grid battery. In this way whatever you're running up to 500 watts will simply drain the battery down to the low warning cutoff. You can always put the 40 amp fuses back in there. You use the fuses in the same way you would use a circuit breaker in your house. if you want to make sure to really protect your equipment then simply go with a lower fuse whether you're using a cigarette lighter on the car or you're using a separate off-grid battery sitting in your tent or in the corner of your house when the power goes out. This would apply to situations where you're running your computer or a CPAP machine and you want to make sure that there is no overload. And, you can see that by using fuses you can buy a 500 watt inverter like this and simply tone it down to where it's going to act more like a 120 to 180 watt inverter. // The inverter that I would love to buy is the one that would come with a tiny little LED screen that reads the voltage on the battery when an off-grid mode and not connected to the vehicle. I charge my batteries to around 13.5 to 14.4 volts. It would be lovely to have an inverter that automatically reads the voltage of the battery so that I could keep an eye on things and make sure that I'm prepared to recharge the battery when it gets down around 11.5 volts. As it is I purchased a inline DC voltmeter so that I can do that, but it's terribly cumbersome and annoying so I took the thing off. IT IS EQUALLY ANNOYING TO HAVE TO USE MY CLAMP VOLTMETER to determine where my battery is at. I highly recommend this for people that live in apartments and are willing to go out and spend the money to buy a 35 amp hour to 100 amp hour battery for emergency purposes. If you find yourself trapped in a city with no power for a couple of days this inverter will prove to be worth its weight in gold or maybe five times its weight in gold because it's a very light inverter. So if you have this and you have a well charged battery you can be guaranteed that your CPAP equipment may run, you can charge your cell phones, and I'm sure there will be other uses. I highly recommend this one because each AC outlet has its own fuse holder. ___________ I took it out of the box, hooked it up to a 35Ah battery, and attached a coffee heater. It works. I still have some equipment tests to run should I need it for an emergency. My voltmeter at the plugs said 116V ac. Being pure sine wave I am very happy to get this. It will likely prove useful in my car for charging batteries for tools on trips. The 500 watts at a price point of $70 is fine with me. My next test will be the drain on my battery for certain items. My need is mostly emergency when we have NO power and I might want to run some lights. This is not the sort of thing you want for running fridges and microwaves. This is excellent for running particular pieces of medical equipment due to low load requirements. Could be very useful in some foreign countries where you might need to siphon energy off of a car battery. ### ⭐⭐⭐⭐⭐ Bestek 500 watt Inverter works perfect and a great value *by R***. on July 15, 2026* I have been extremely happy with the quality and performance of multiple Bestek inverters I've purchased. They run cool, perform great and have exceeded my expectations. I highly recommend Bestek inverters as a more afforadable option to other name brands without sacraficing quality or function. In addition, Bestek has top notch customer service and actually cares about after sales support. They are very responsive by email with support questions being answered in hours not days or weeks. If you like to tinker with solar projects and you're on a budget, like me, but still want a quality product that is well supported at very competetive price, give Bestek a try. You'll appreciate the experience, value and support. I wish more companies were like this. ### ⭐⭐⭐⭐ Clean power *by W***R on August 10, 2026* Attn: ham radio operators. This inverter is clean and does not cause interference with the radios. Even on the low bands. Work good and is stable. Will buy again. 4 stars as there is always room for improvement. ## Frequently Bought Together - BESTEK 500W Pure Sine Wave Power Inverter DC 12V to 110V AC Car Plug Inverter Adapter Power Converter with 4.2A Dual USB Charging Ports and 2 AC Outlets Car Charger, ETL Listed, Blue - BESTEK 12.1ft / 3.7m 12V 24V Cigarette Lighter Extension Cord, 12AWG Heavy Duty Cigarette Lighter Cable with Cigarette Lighter Plug Socket (Black) - Aproca Hard Storage Travel Case for BESTEK 500W Pure Sine Wave Power Inverter --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/219372469-bestek-500w-pure-sine-wave-power-inverter-dc-12v-to](https://www.desertcart.tn/products/219372469-bestek-500w-pure-sine-wave-power-inverter-dc-12v-to) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-09-12*