RoyPow 240V to 12V Transformer 10A Mains to 12V Adapter 120W (Max 150W) Power Supply Cigarette Lighter Voltage Converter

Perfect for the job the unit is quite large and excellent for powering my electric cooler box

This convertor works well. It is rated at 120W and I used it to power up a car vacuum cleaner, rated at 110W. The power provided by the convertor to the vacuum cleaner was more than enough to drive it well. The convertor is a little bulky, but this is understood due to the "relatively high" wattage it is able to provide.

During the coronavirus lock-down my car wasn't used for several weeks and when I eventually decided to give it a short run the battery was flat. I own a 'Metro jump start', a useful item which slowly recharges the battery via the car's cigar-lighter socket. (There are similar items available from Amazon). It requires a connection to another car's cigar-lighter socket in order to draw the charging current. Under the lock-down that was not possible so I wondered whether there was such a thing as an adaptor which converts mains power to 12 volt DC. Amazon came to the rescue. I chose this particular model as it matched the cigar-lighter socket rating of up to 120 watts. It did the job brilliantly and I was delighted - the battery was slowly charged and the car started first-time. I also have an air-compressor which works from a 12V cigar-lighter socket - I used the converter to power it as well and it made the job of checking the tyres very straightforward. I would definitely recommend the RoyPow voltage converter.

I purchased a Halfords rapid car powered tyre inflator to replace the one I had that became too old to use. The discarded Michelin one was powered by a built in rechargeable battery, and served me well. A new replacement Michelin rechargeable inflator had suffered a severe dose of price inflation, making itself more expensive than I was willing to pay. Many years ago, I had owned a car powered tyre inflator, and was aware of the grossly inconvenient - not to mention environmentally unfriendly - business of having to start the car engine whilst using the inflator, to avoid running down the car battery. I was, therefore, keen to purchase a mains powered cigar lighter socket to use instead of having to run the car engine. I was advised in the local Halfords shop, where the purchase was made, that there was such an item, but it wasn't powerful enough to run the tyre inflator, so I decided to browse Amazon with caution on this very topic. The RoyPow was listed amongst others, but this one had many positive reviews on its capability to power a tyre inflator, so, with apprehension, I made the purchase. I am not a believer in writing reviews immediately after opening the packet, so this review is made after many uses. I confidently add the 5 star rating, because I can find no fault in its performance. It performs exactly as you would expect it to, and I would advise you to look no further.

I've had this for a while now. Paid for it myself at full price. I got it to because Im lazy and didnt want to pump up my bikes tires on a cold winter night with a hand pump, so it was going to be used with an air compressor. For that purpose it has done it's job flawlessly, and its near silent - in fact you wouldn't even know it had a fan inside it. My neighbours little kids have all asked me to pump up their tires and this little unit has been up to the task for powering my 150psi compressor. As its only been used to power a compressor to pump up bike tires its run times has only been for 2-3 minutes maximum. Overall its a great unit, a little pricey though!