12v Electric lunch box anyone?

[SmithsInFrance]

Has anyone tried one of these or similar? Any good? Thought it might be interesting for heating things up while travelling.

Amazon product ASIN B07JHWNCXL
I can't seem to load a link to the one I found on Amazon, but it is called Travelisimo heated lunch box and it plugs into the cigarette lighter.

 

[Lenny HB]

Can't see it doing much its only 40 watt, slow cookers are at least 150 watt look how long they take to heat things.

 

[Keith777]

I bought one last week to heat meals up in work on 240v and it works brilliantly, not tried it on 12v yet,would recommend. Cheers Keith.

 

[SmithsInFrance]

Thanks Keith777 - can you let me know how it works on 12V when you try it?

 

[Keith777]

Works great on 12 v too !

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[SmithsInFrance]

thanks Keith777

 

[Vipar]

There was a program on TV called bugger forgot the name it was about owner drivers who bid on line for work. They was a hippie type couple in a big Transit who used to truck stuff between uk and Spain. Who had one of those she used to put meat and veg into it in the morning and when they parked up at night they had a delicious hotpot/ stew

 

[rolosroller]

https://rover.ebay.com/rover/1/710-...0001&campid=5338547443&icep_item=164322098790

 

[pappajohn]

Can't see it doing much its only 40 watt, slow cookers are at least 150 watt look how long they take to heat things.

A pair of 12v 21w indicator bulbs connected to a battery and placed in a tin with a lid will do as good a job

 

[SmithsInFrance]

A pair of 12v 21w indicator bulbs connected to a battery and placed in a tin with a lid will do as good a job

Perhaps, but it wouldn't look as pretty, sigh . Ordered one from Amazon France (as we live in France), only €23.99 from them

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[thebriars]

Perhaps, but it wouldn't look as pretty, sigh . Ordered one from Amazon France (as we live in France), only €23.99 from them

You don't remember your Blue Peter childhood. Cover it in sticky black plastic.

 

[Langtoftlad]

A pair of 12v 21w indicator bulbs connected to a battery and placed in a tin with a lid will do as good a job

Now that's not quite true is it... most of the energy is turned into light not heat, tut tut.

Can't see it doing much its only 40 watt, slow cookers are at least 150 watt look how long they take to heat things.

...but it's only 1.5 litre capacity, most slow cookers are about 5 litres so that sounds about perfect.
Actually I do have a small slow cooker, just 1.5l but it's too hot, even on low for slow cooking, that's 120w

 

[Richard n Ann]

Now that's not quite true is it... most of the energy is turned into light not heat, tut tut.

No I think John is right, bulbs are really inefficient and turn most of the energy into heat

 

[tonyidle]

No I think John is right, bulbs are really inefficient and turn most of the energy into heat

Light from a filament bulb is just concentrated hotter than average heat

 

[pappajohn]

Now that's not quite true is it... most of the energy is turned into light not heat, tut tut.

And what is light if not heat.
A bulb is a glowing element.

We have a 60w tube heater in the downstairs toilet.... No radiator in there and told her it wasn't worth it.... Makes a cracking handwarmer in winter if you grasp it.

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[SmithsInFrance]

You don't remember your Blue Peter childhood. Cover it in sticky black plastic.

You’re right! And as soon as I’ve finished my Thunderbird Island that will be my next project

 

[LesW]

Clearly a lot of (wrong) guesswork on this subject.

...but, I used to use something similar when I was working, and it worked a treat, easily warming pies through enough to have to wait for them to cool down a bit, even cooked some bacon, to make a lovely sandwich

 

[SmithsInFrance]

Clearly a lot of (wrong) guesswork on this subject.

...but, I used to use something similar when I was working, and it worked a treat, easily warming pies through enough to have to wait for them to cool down a bit, even cooked some bacon, to make a lovely sandwich

Oh don’t! How I’m missing bacon

 

[The Wino]

No I think John is right, bulbs are really inefficient and turn most of the energy into heat

True also if the light doesn't escape the box its all turned back into heat anyway. When you look at LEDs power consumption compared to fillament lights all the rest is heat. The leds still get warm when running so they still convert a fair bit of power into heat.

 

[The Wino]

Now that's not quite true is it... most of the energy is turned into light not heat, tut tut.

Sad person that I am I used to examine people in lightning exams. An ordinary indicator bulb produces about 10 lumens of light per watt if it turned all the electricity into light at the peak sensitivity of the human eye it would be 683 lumens per watt the rest is mainly heat or light of wavelengths our eyes aren't very sensitive to.

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[Off da Grid]

Just leave the box on the dash in the sun.

 

[The Wino]

Just leave the box on the dash in the sun.

They won't sell many in a lot of the uk then!

 

[Off da Grid]

Gets pretty hot on our dash in the summer!

 

[The Wino]

Gets pretty hot on our dash in the summer!

So does ours but not at a time of year I really fancy some nice slow cooked food.