Running 2 P3D Premium, 215 lumen each. Brightness is great, runtime on Turbo is not as advertised. Maybe 70 minute instead of 100+.

Runtime on Hi (120 lumen each) is great and "enough" light for most situations. together, that's more light and longer runtime than a single Dinotte.

small drawback is they take cr123a, a minor hassle, but not bad. the AA lights are just a small step behind in terms of light output. AA lights are a bit bigger, too.

cheers