Selfbuilt's Flashlight Reviews
Extensive comparative analyses of modern LED flashlights
My goal is to provide objective testing results, in a readable form, to let you decide what flashlight best fits your needs. My reviews are posted on candlepowerforums, to facilitate ongoing discussions with the user community.
My flashlights are expensive to feed with all the runtime tests I perform, so I gratefully accept donations to my Paypal battery fund.
Flashlight Resources See my Testing Methods for further resources
Video overviews of each of my flashlights, plus additional background primers.
Overview of the ANSI/NEMA standard for flashlight testing (FL-1).
My lightbox design, and how I have calibrated it for estimated lumens.
Overview of all my recent outdoor 100-yard beamshots.
Latest Review: V54 Sky Lumen 2
The SL2 is the first light I've reviewed from Vinh Nguyen (V54) that is not a mod of an existing build. The Sky Lumen label is the new in-house brand developed by Vinh, to have complete control over build, parts and the circuit/interface.
The SL2 reviewed here uses a premium dedome emitter (XL-L2 U3 PDTc), and is driven to extremely high output levels, requiring the use of high drain 18650 Li-ion batteries.
March 24, 2015
Looking for help to get started? Check out my Flashlight Recommendations page to help you sort through all the different flashlight and battery types currently available.