What are the dimensions of the 300W version please?

8.5" long x 4" wide x 2.5" long. and it does produce a pure sine wave, I checked it with my oscilloscope. Beware of cheaper inverters that boast a pure sine wave: I first bought one for £25 and it knackered my old transistor radio. When I checked that one, it was producing a modified sine wave i.e a square wave or block formation. With a 65 watt load, the Bestek takes 5.7 amps from the battery.

Does it have a built in fuse that can be changed if blown? or if i wire it straight to my car battery, do i need to install a 30a inline fuse?

If you connect directly to a battery simply install a 30 amp inline fuse on the power cable and you’ll never blow the internal fuse 👍

What are the dimensions of this item? Does it come with cables to attach to a battery?

6.25" x 3.75" x 2" It comes, as illustrated, with a plug to go into your car cigarette lighter. I wanted to run this off a battery, so cut off the plug with enough lead on the plug that , by plugging it into a car socket, I could ensure I got the polarity right.. With a 65waat load, the invert draws 5.7 amps, and it is a pure sine wave, it will run a music centre, radio etc without any problem.

Would this work with my laptop charger, which is 230watts?

Yes it will without a problem. Be aware that the unit is plastic so uses a fan to keep it cool meaning if you're pulling 230watts(this seems quite high for a laptop and is probably a peak power rather than continuous), you'll have constant fan noise at 230w - it's not massively loud, but it might be distracting. Maybe just go for a 12v dc-dc adapter instead? Ours is enclosed under the bed in our camper and it's still audible when delivering just 100watts. still a great product though

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BESTEK 300W Pure Sine Wave Power Inverter 12V to 240V 230V with 4.8A Dual Smart USB Ports Car Adapter Charge Your Laptop iPad iPhone Tablet Consoles & More

Product ID: 53594222

Details

Battery capacity
5 Amp Hours
Brand
BESTEK
Power source
Vehicle
Recommended uses for product
Vehicle
Wattage
300 watts

⚡300W continuous pure sine wave power

🔌Dual 4.8A smart USB charging ports

🚗Ultra-compact, travel-ready car adapter

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4606684₫

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Sold byAmazon VietnamDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Power up anywhere, anytime — because your gear deserves the best charge!

DUAL SMART USB PORTS - Auto-detects devices to deliver fastest 2.4A charge per port, max 4.8A
COMPACT TRAVEL READY - Lightweight design fits any vehicle’s cigarette lighter socket for on-the-go power
BUILT IN MULTI PROTECTION - Safeguards against short-circuit, overload, over-voltage & temperature spikes
RELIABLE 300 W CONTINUOUS OUTPUT - Handles your essential devices with peak power up to 700W for emergencies
PURE SINE WAVE POWER FOR SENSITIVE TECH - Seamlessly powers laptops, tablets & consoles without interference

The BESTEK 300W Pure Sine Wave Power Inverter converts 12V DC to 240V AC with clean, stable power ideal for sensitive electronics. Featuring dual smart USB ports delivering up to 4.8A total, it charges multiple devices rapidly. Its ultra-compact design plugs into any vehicle cigarette lighter, perfect for travel, boating, or emergency backup. Advanced multi-protection ensures safe operation, making it a reliable power companion for professionals on the move.

Specifications

ASIN	B076P9PGX3
Antenna Location	Vehicle
Battery Capacity	5 Amp Hours
Best Sellers Rank	2,364 in Automotive ( See Top 100 in Automotive ) 10 in Power Inverters
Box Contents	Fuse, Instruction Manual
Brand Name	BESTEK
Colour	300W
Country of Origin	China
Customer Reviews	4.4 4.4 out of 5 stars (944)
Display Type	LED
Electrical Output Waveform	Pure Sine Wave
Energy Specifications Standard	CE
Frequency	60 Hz
Input Voltage	12 Volts
Inverter Capacity Volt-Amp	3600
Manufacturer	BESTEK GLOBAL LTD
Manufacturer Part Number	MRZ3013HU-BK-UK
Model Name	MRZ3013HU-BK-UK
Model Number	MRZ3013HU-BK-UK
Number of Outlets	2
Output Power	300 Watts
Output Voltage	240 Volts
Peak Output Power Watts	700
Power Source	Vehicle Powered
Standby Power Shutoff	High
Voltage	12 Volts
Wattage	300 watts

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