Sardine can flashlight?

Hello to everyone. Although this is my first post, I have been looking at the forum for a while and bought enough flashlights to lie awake at night thinking about flashlight designs.

Specifically, a round (U.S.) sardine can design, based on 2 transversely situated 21700 cells: heatsink fins located in the two segments not occupied by the batteries: the head with a diameter of less than 100mm would provide ample space to locate throw, flood, and auxiliary emitters: 2 buttons, one for mode (throw, flood, or both) and the other for the UI: the tail could support a strap to insert 3 or 4 fingers to hold the flashlight firmly: judging by the EO7 & D18 specs, the cells would support about 10,000 lumens on turbo. In a 50mm cylinder - twice the size of a hockey puck - it would put the Q8 in the shade.

Is it realistic or desirable? Could it be a BLF project?

Perhaps a thought, an idea, for the next DIY contest?

? Round cans? Mine are rectangular with rounded corners

What would be the purpose or benefit of such a design that a more traditional flashlight form factor can’t offer?

You’re right. I was thinking of the round tuna cans, rather than the sardine cans you describe.

This configuration would have two benefits: it would have a large area to configure the emitter array(s) and would be more easily pocketable than the normal fat or long cylinder designs for multi-cell flashlights.

Oil and hot peppers for me… I love sardines!

I only eat the peeled and seedless ones. I ain’t a cat.

Yummy, but the stank gets alllll over ya.

Still trying to visualise the proposed light from the description… not sure I’m “getting it”. And I just had a can o’ tuny-fish not more than an hour ago. Where would the head stick out from the can?

You could carry it in the back pocket of your jeans like a can of Skoal or something. We use to build full blown transceivers in Altoid tins, just because we could. :slight_smile:

If it is to house two 21700 cells, like OP is suggesting, then it’ll likely be larger than a can of Skoal, but I get it. For me, something like a Convoy S2+ fits in jeans pocket just fine, but I suppose a cob-like ‘puck’ could be more versatile.

https://www.amazon.com/PowerFirefly-Rotating-Magnetic-Inspection-Emergency/dp/B078S4PJ6Y/ref=sr_1_3?keywords=round+flashlight&qid=1553689292&s=gateway&sr=8-3

This one runs on two 18650 cells:
https://www.amazon.com/dp/B07DCL81W3/ref=psdc_5772204011_t1_B078S4PJ6Y

http://souterweb.free.fr/boitaoutils/eclairage/Nipharled%20IV/album_photos_lampes_led_speleo_4.htm