1800 LUMENS: Reader Michael McNeill recommends this, which he calls “a honking, wrath-of-God flashlight.” It’s 1800 lumens. He writes:

I particularly like the flashlight’s “Zoom” feature, which many of these flashes lack. It does take the special 18650 Li-Ion battery (x 2), which (together with their charger) can be pricy, while cheaper ones may not work as well in these flashes (they can overheat, etc.), according to some of the reviews (of other such; this flash has no reviews as yet).

I went with an expensive, quality battery brand, based on Panasonic cores, to wit:

Two 3400mAh PROTECTED 18650 Orbtronic (Panasonic NCR18650B cell inside) Li-ion Rechargeable Batteries, and Smart 3 speeds battery charger Kit (Latest Version), $69.99.

3400mAh 18650 PROTECTED Li-ion (Panasonic NCR18650B inside) Orbtronic Battery – Latest Model-Top Button, $15.99.

The flashlight’s cheaper on its own than the one I mentioned last night, but as a package it’s not.