--- product_id: 219372469 title: "BESTEK 500W Pure Sine Wave Car Power Inverter DC 12V to 110V AC Adapter" brand: "bestek" price: "$169.34" currency: USD in_stock: true reviews_count: 13 category: "Bestek" url: https://www.desertcart.us/products/219372469-bestek-500w-pure-sine-wave-car-power-inverter-dc-12v store_origin: US region: United States of America --- # 500W Pure Sine Wave Power 2 AC Outlets + Dual USB 4.2A Fast Charge Multi-layer Safety & Thermal Protection BESTEK 500W Pure Sine Wave Car Power Inverter DC 12V to 110V AC Adapter **Brand:** bestek **Price:** $169.34 **Availability:** βœ… In Stock ## Summary > πŸ”‹ Power your mobile lifestyle with pure, reliable energy β€” anytime, anywhere! ## Quick Answers - **What is this?** BESTEK 500W Pure Sine Wave Car Power Inverter DC 12V to 110V AC Adapter by bestek - **How much does it cost?** $169.34 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/219372469-bestek-500w-pure-sine-wave-car-power-inverter-dc-12v) ## 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 - β€’ **Advanced Safety Suite:** Built-in protections guard against overload, overheat, under/over-voltage, and reverse polarity. - β€’ **Smart Thermal Management:** Quiet fan and aluminum casing keep your inverter cool and reliable during extended use. - β€’ **Robust 500W Power Capacity:** Run laptops, small appliances, and tools effortlessly on the road or off-grid. - β€’ **Dual USB Fast Charging Ports:** Charge your devices at max speed (up to 4.2A total) while powering AC essentials. - β€’ **Seamless Pure Sine Wave Output:** Protect your sensitive electronics with clean, grid-quality power anywhere you go. ## Overview The BESTEK 500W Pure Sine Wave Power Inverter converts your vehicle’s 12V DC into clean 110V AC power with minimal interference, ideal for sensitive electronics. Featuring 2 AC outlets and dual USB ports with fast charging, it supports up to 500 watts continuous load. Its advanced safety features and thermal management ensure device protection and durability, making it a must-have for professionals on the move. ## Description Buy BESTEK 500W Pure Sine Wave Car Power Inverter DC 12V to 110V AC Adapter | 4.2A Dual USB Charging Ports & 2 AC Outlets for Phones, Laptops, Camping & Road Trips, Car Plug Converter, ETL Listed, Blue: Power Inverters - desertcart.com βœ“ FREE DELIVERY possible on eligible purchases Review: Really clean sine wave, works great so far - Took it camping to inflate a large mattress and it worked perfectly. No hesitation and the motor ran at full speed with no extra humming or noises you'd get on a modified sine wave inverter. There's a photo attached hooked up to the car battery to do this job. This load is about 190 watts, with whatever spike that happens when the motor starts up. When it first arrived, I tested it with an oscilloscope because I was skeptical of the "pure sine wave" claim on an inverter at this price point. There's two photos attached- the one that looks perfect is this inverter running an LED 110v lamp. The one that looks a little rough around the peaks/valleys is from a 4000W inverter meant to run a house off the grid (costs several thousand dollars)- but it's running an air conditioner, refrigerator, and all the other junk people plug in at home. Still, it goes to show that this little inverter makes a really nice sine wave. This is good because many types of electrical devices don't function well (or they make weird humming noises) with a poorly shaped sine wave (or a square wave like the cheaper ones make). Other tests I tried: - Charging my Macbook worked fine with normal power plug - Connected it to a 50 watt power source to see what it does under overload. When you try to draw more power than your source can supply, it resets until you turn it off and on again then it happily tries again. This is nice because if you run it from a weak battery it won't sit there trying to make 110v and failing miserably, possibly damaging whatever you're trying to run. - Used USB port to charge the Macbook as it can accept power from a normal USB source (obviously it'll charge a lot slower because there's less power available, but still it gets some juice). Worked fine. - Charged a phone from USB, worked fine I read the bad reviews before I bought this inverter. Some of the bad reviews maybe they got a defective unit, but others are almost certainly from improper use (especially the blown fuse ones). Some things to watch out for: - The cigarette lighter or power port on your car will NOT supply 500 watts, I guarantee it unless you've got an electric car or something and even then probably not. My truck has a 20 amp fuse on that circuit and the car in the photo attached has a 15 amp fuse. At 12 volts, that means they can supply 240/180 watts respectively. And that's at the point the fuse blows, not the point you can safely draw power- the car port says "125 watts max" when its fuse blows at 180. So the people mad because this inverter "doesn't work in my car" or "blew a fuse in my car" were simply trying to draw more power from the inverter than the fuse in their car would allow. - Note in the photo above that I connected directly to the battery. If I had plugged this into the 15 amp power port inside the car with the cigarette lighter adapter, it most likely would have blown the fuse. - The power adapter on my laptop says 140 watts, so even plugging that into the inverter using the car's power port *might* blow the fuse if there's a spike on startup. You REALLY need to look at what you're plugging into this thing if you're using it inside the car and see how many watts it uses- then pad that for safety and because the inverter is not 100% efficient at converting DC watts from your battery to AC watts that it outputs. - Like any electronic device, solder joints can break if you drop it so be careful with it. Treat it like a laptop or something else you don't want broken. Broken solder joints will result in intermittent failure or complete failure. Maybe keep it in the box when you're not using it. Things I haven't tried: - drawing a 500W load to see if it really is 500W. I can only verify it supplies about 200W well. - checking how much power it draws when off with no load, or on with no load. I'd like to get around to this because would be nice to know if it needs to be unplugged when not in use. Review: Runs upright freezer with caveat - I have a small upright freezer that I wanted to be able to run from a 200ah 12v lifepo4 battery for when the power goes out. It draws less than an amp at 120v once the compressor spins up but the inrush current makes it so most smaller inverters can't run it. I didn't want/need a giant 1-2kW inverter since the idle draw would average almost as much as the freezer. This inverter also struggles to run it from the included clamp cables, when the freezer compressor kicks in it does work most of the time but since the freezer powers on 20-30 times per day, it usually fails within a day and requires babysitting. When the overcurrent or under voltage protection or whatever kicks in on this inverter, the light just blinks red and the power has to be cycled in order for it to work again. I made some short 6AWG cables about a foot long with ring terminals going directly from the battery terminals to the inverter inputs, and now it works very reliably. It runs for days until the battery runs out like i want. Idle consumption seems low and efficiency seems good, haven't measured but it never gets hot. Satisfied with this purchase. Edit 2025-12-20: I have used it while car camping and a couple small power outages the last year and still works great. Found out it runs a small WTJMOV brand 0.6 liter 600w kettle long enough to boil a full pot of cold water and click off on its own without tripping any of the inverter protection circuits. Draws 620w when running from the wall but 535w when running from the inverter, boils 600ml to make 2 cups of tea or a bowl of ramen in 7 minutes. ## 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 | #6,055 in Automotive ( See Top 100 in Automotive ) #20 in Power Inverters | | Brand | BESTEK | | Built-In Media | plugs | | Cable Length | 2010 inches | | Color | 3 Blue | | Customer Reviews | 4.5 out of 5 stars 3,383 Reviews | | Electrical Output Waveform | Pure Sine Wave | | Energy Specifications Met | ETL | | Frequency | 60 hertz | | Input Voltage | 12 volts | | Inverter Capacity Volt-Amp | 500 | | Item Highlight | 4.2A Dual USB Charging Ports & 2 AC Outlets for Phones, Laptops, Camping & Road Trips, Car Plug Converter, ETL Listed, Blue | | Item Weight | 2.2 pounds | | Manufacturer | BESTEK | | Mfr Part Number | MRZ5011BU-BL | | Model Name | MRZ5011BU-BL | | Model Number | MRZ5011BU-BL | | Number of Items | 1 | | 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 Car Power Inverter DC 12V to 110V AC Adapter - Image 1](https://m.media-amazon.com/images/I/71ziQshiJnL.jpg) ![BESTEK 500W Pure Sine Wave Car Power Inverter DC 12V to 110V AC Adapter - Image 2](https://m.media-amazon.com/images/I/71M2eOcy5uL.jpg) ![BESTEK 500W Pure Sine Wave Car Power Inverter DC 12V to 110V AC Adapter - Image 3](https://m.media-amazon.com/images/I/71DywhlM+rL.jpg) ![BESTEK 500W Pure Sine Wave Car Power Inverter DC 12V to 110V AC Adapter - Image 4](https://m.media-amazon.com/images/I/71JShARoMAL.jpg) ![BESTEK 500W Pure Sine Wave Car Power Inverter DC 12V to 110V AC Adapter - Image 5](https://m.media-amazon.com/images/I/71ONcJYKZlL.jpg) ## Available Options This product comes in different **Color, Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Really clean sine wave, works great so far *by J***N on August 1, 2022* Took it camping to inflate a large mattress and it worked perfectly. No hesitation and the motor ran at full speed with no extra humming or noises you'd get on a modified sine wave inverter. There's a photo attached hooked up to the car battery to do this job. This load is about 190 watts, with whatever spike that happens when the motor starts up. When it first arrived, I tested it with an oscilloscope because I was skeptical of the "pure sine wave" claim on an inverter at this price point. There's two photos attached- the one that looks perfect is this inverter running an LED 110v lamp. The one that looks a little rough around the peaks/valleys is from a 4000W inverter meant to run a house off the grid (costs several thousand dollars)- but it's running an air conditioner, refrigerator, and all the other junk people plug in at home. Still, it goes to show that this little inverter makes a really nice sine wave. This is good because many types of electrical devices don't function well (or they make weird humming noises) with a poorly shaped sine wave (or a square wave like the cheaper ones make). Other tests I tried: - Charging my Macbook worked fine with normal power plug - Connected it to a 50 watt power source to see what it does under overload. When you try to draw more power than your source can supply, it resets until you turn it off and on again then it happily tries again. This is nice because if you run it from a weak battery it won't sit there trying to make 110v and failing miserably, possibly damaging whatever you're trying to run. - Used USB port to charge the Macbook as it can accept power from a normal USB source (obviously it'll charge a lot slower because there's less power available, but still it gets some juice). Worked fine. - Charged a phone from USB, worked fine I read the bad reviews before I bought this inverter. Some of the bad reviews maybe they got a defective unit, but others are almost certainly from improper use (especially the blown fuse ones). Some things to watch out for: - The cigarette lighter or power port on your car will NOT supply 500 watts, I guarantee it unless you've got an electric car or something and even then probably not. My truck has a 20 amp fuse on that circuit and the car in the photo attached has a 15 amp fuse. At 12 volts, that means they can supply 240/180 watts respectively. And that's at the point the fuse blows, not the point you can safely draw power- the car port says "125 watts max" when its fuse blows at 180. So the people mad because this inverter "doesn't work in my car" or "blew a fuse in my car" were simply trying to draw more power from the inverter than the fuse in their car would allow. - Note in the photo above that I connected directly to the battery. If I had plugged this into the 15 amp power port inside the car with the cigarette lighter adapter, it most likely would have blown the fuse. - The power adapter on my laptop says 140 watts, so even plugging that into the inverter using the car's power port *might* blow the fuse if there's a spike on startup. You REALLY need to look at what you're plugging into this thing if you're using it inside the car and see how many watts it uses- then pad that for safety and because the inverter is not 100% efficient at converting DC watts from your battery to AC watts that it outputs. - Like any electronic device, solder joints can break if you drop it so be careful with it. Treat it like a laptop or something else you don't want broken. Broken solder joints will result in intermittent failure or complete failure. Maybe keep it in the box when you're not using it. Things I haven't tried: - drawing a 500W load to see if it really is 500W. I can only verify it supplies about 200W well. - checking how much power it draws when off with no load, or on with no load. I'd like to get around to this because would be nice to know if it needs to be unplugged when not in use. ### ⭐⭐⭐⭐⭐ Runs upright freezer with caveat *by C***S on December 12, 2024* I have a small upright freezer that I wanted to be able to run from a 200ah 12v lifepo4 battery for when the power goes out. It draws less than an amp at 120v once the compressor spins up but the inrush current makes it so most smaller inverters can't run it. I didn't want/need a giant 1-2kW inverter since the idle draw would average almost as much as the freezer. This inverter also struggles to run it from the included clamp cables, when the freezer compressor kicks in it does work most of the time but since the freezer powers on 20-30 times per day, it usually fails within a day and requires babysitting. When the overcurrent or under voltage protection or whatever kicks in on this inverter, the light just blinks red and the power has to be cycled in order for it to work again. I made some short 6AWG cables about a foot long with ring terminals going directly from the battery terminals to the inverter inputs, and now it works very reliably. It runs for days until the battery runs out like i want. Idle consumption seems low and efficiency seems good, haven't measured but it never gets hot. Satisfied with this purchase. Edit 2025-12-20: I have used it while car camping and a couple small power outages the last year and still works great. Found out it runs a small WTJMOV brand 0.6 liter 600w kettle long enough to boil a full pot of cold water and click off on its own without tripping any of the inverter protection circuits. Draws 620w when running from the wall but 535w when running from the inverter, boils 600ml to make 2 cups of tea or a bowl of ramen in 7 minutes. ### ⭐⭐⭐⭐ 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? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/219372469-bestek-500w-pure-sine-wave-car-power-inverter-dc-12v](https://www.desertcart.us/products/219372469-bestek-500w-pure-sine-wave-car-power-inverter-dc-12v) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-10-15*