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QT 18650 analog flashlight made in USA by FrazLabs

QT series flashlight made in USA by FrazLabs.

QT Series Extended Tailcap vs Aluminum Tailcap made in USA by FrazLabs

QT-SS 18650

Name: QT-SS 18650
SKU: QTSS18650
Availability: InStock
Rating: 5.00 (7 reviews)

Rated 5.00 out of 5 based on 7 customer ratings

(7 customer reviews)

A stainless steel body combined with our patented engine makes for one tough flashlight.

Finish

Tailcap Style

Clear

The QT series is FrazLabs’ compact analog flashlight lineup — fully solid-state lights built without soldered wires, PCB boards, drivers, or planned obsolescence. Every model in the series uses the same piston-based smart material engine: brightness is controlled by twisting the bezel tighter, delivering infinitely variable output with no mode steps, no PWM, and no electronics involved.

How It Works

Tighten the bezel to increase pressure on the smart material and raise output. Back it off to dim. There are no switches, no firmware, and no failure points tied to electronics. This model runs on 18650 battery cells (protected or unprotected).

Direct Drive Warning: If bypassing the smart material on direct drive, do not leave unattended. The body will get hot during extended direct drive use.

Tailcap Options

All QT models are available with your choice of tailcap:

Regular (Aluminum) — recessed fit, ideal for unprotected cells

Stainless Steel — accepts batteries no longer than 35mm true length

Extended — adjustable for protected cells or cells with USB charging ports; sits proud of the battery tube slightly

The absolute slimmest flashlight we make, with a totally redesigned engine, this is the perfect pocket carry for those who want a light made to last (and made in the USA) .

Please note – If used on direct drive (bypassing the QTC) for a long period of time, this flashlight will get VERY hot. DO NOT LEAVE UNATTENDED ON DIRECT DRIVE.

A fully adjustable solid state flashlight with no wires, no PCB boards, no drivers, and no planned obsolescence.

Product details

Body Material – Stainless 360

Coating – None

Bezel Diameter – 1.2″

Length – 4.2″

Weight Without Battery – 7.5oz

Waterproof – Yes

Emitter – Luminus SST-20 | Samsung 351D

Optic – Carclo 26.5mm

Battery Type – 18650 (not included)

Included in purchase – flashlight, box, lubrication square