Battery Ultra bright LED off a battery supply.

[Dorsetguy.]

Hello. Can anyone tell me how to run an ultra bright, even car headlamp if possible, off a battery source? Battery supply needs to be as small as possible, small enough to fit inside an item about the size of a cigar tube and the bulb needs to be no wider than about 10mm. Any ideas?

 

[Richard Burns]

A car headlight bulb is 12V so you would be restricted to 12V A23 batteries at that size, they would run a car headlight for about 1 minute before going flat. Even a G4 6W bulb would only last 10 minutes.
I would suggest that buying a pencil torch and dissembling it for parts would be the most effective means of proceeding.

 

[snowhead]

The wheel has already been invented.
And so has the Torch;

New Shadowhawk 10000lm Tactical Flashlight CREE T6 LED Military Torch Gift Kit | eBay - https://www.ebay.co.uk/itm/New-Shadowhawk-10000lm-Tactical-Flashlight-CREE-T6-LED-Military-Torch-Gift-Kit/253216228805?epid=546335246&hash=item3af4dd05c5:g:1PwAAOSwA3dYmC9a

 

[paul291277]

Mountain bike lighting?

Compact and very bright

Lezyne - Engineered Design - Products - LEDs - http://www.lezyne.com/products-led.php

 

[paul291277]

10mm diameter? Sorry, ignore my last comment

 

[PEG]

Ledlenser X7R and some gorilla tape.