A device to boost headlamp voltage

[PDrill]

At first I was going to post this in "Electricity. Batteris & Hookup" but as it seems to be a sub-category of "Motorhome Life Support Systems", I'll put this here.

Years ago a store here in Finland sold a device that lifted and stabilized the voltage for H1/4/7 -bulbs, but they don't sell it any more and I don't know the english word to search for those from fx Ebay. If I type in H4 booster, all I get is a set of wires and relays what is not what I am looking for. The system had a separate 'box' which created a steady 14.8 volts in any situation, even the engine turned off and that's what I'm after. And it really was great. With new lamps and a pair of some ++% bulbs and that kit the lights of my old Land Cruiser were fabulous and that's what I'm after again.

So, what might be the word I'm looking for?

 

[Clivefog]

Ballast maybe?

 

[pappajohn]

Voltage stabiliser.
But what you need is an LED conversion or night breaker halogen bulbs ...straight swap and up to 200% brighter.
Loads on eBay and Amazon

 

[Raul]

You want a dc to dc converter 12-12v that will boost the 12v nominal even as low as 8v to max 15v
Search for dc dc converter 12v to 12v. Victron do one in this category. Just wire it up on power in, then with a multimeter on output turn the potentiometer clockwise to get your desired 14.8v or whatever is needed. The key word is dc dc converter.

 

[Glitch]

Search for "Buck converter", something like this

Waterproof DC 12V to 13.8V 18A 248W Step-Up Power Supply Converter Regulator UK | eBay

Output current: 18A (max), 248W. Waterproof DC/DC Converter Regulator 12V Step Up to 15V 15A 225W UK. WaterProof 48V to 12V 15A 180W Step Down DC/DC Power Converter Regulator UK. WaterProof 12V/24V to 5V 20A 100W Step Down DC/DC Power Converter Regulator UK.

www.ebay.co.uk

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[Lenny HB]

You might need to put the correct ballast loads on the inputs in case the CANBUS throws a wobbly.

 

[autorouter]

Search for "Buck converter", something like this

Don't like being too pedantic, but a 'buck' converter steps voltage down, and a 'boost' converter steps voltage up. And 'buck-boost' or 'stabiliser' gives a constant output whatever the input is.

 

[Glitch]

Don't like being too pedantic, but a 'buck' converter steps voltage down, and a 'boost' converter steps voltage up. And 'buck-boost' or 'stabiliser' gives a constant output whatever the input is.

You are sir Very right, although I do note that on eBay the terms appear to be interchanged in product descriptions.