The missing choice

i was thinking last night about a light i would like to see made: a PR based two-123 light. essentially a 123 powered tec-40 or UK 2L with PR base.

you could have it use an XPR 113, therefore you could throw in an easily-available and inexpensive KPR113 in a pinch...of course, the moddability is nice.

why 123? they are much less expensive than lithium aa. form factor is nice as well.

just a comment, i guess.

anyone know if a light like this exists?

Bob

Much less expensive?

123s are 3900 mWh and L91s are 4425 mWh

If we look at the energy ratio

4425/3900 the L91 has 1.13 the energy of the 123

If we assume the cost to be $2.00 for the L91 and $1.25 for the 123 that gives us a price ratio of 2.00/1.25 or 1.6

So the L91 is 1.6/1.13 the cost per mWh more or 1.42 times the cost. It's not as much as one would think.

I do hope that the L91 does decrease a bit in cost.

But, I don't know if such a light exists.

Cheers,

Richard ( a proud user of L91s for certain applications for over ten years).

Lithium AA's - Energizer L91's are only 1.5 volts. They are not comparable to 123 cells which are 3 volts.

Yeah, it basically takes 4AAs to equal 2-123s.

In THAT way, a TEC 40 fits.