BRINYTE ZT40 - ZOOMABLE TACTICAL FLASHLIGHT Review & vs Convoy Z1 SFT-25R

[Weerapat_K]

Hello. Here is my review on BRINYTE ZT40 - ZOOMABLE TACTICAL FLASHLIGHT & Beamshots Comparison Against Convoy Z1 SFT-25R. Thanks for a good place to share content. Please subscribe .

BRINYTE ZT40 - Zoomable Tactical Flashlight, SFT-25R, 1650 lm & Beamshots vs Convoy Z1 SFT-25R

[QReciprocity42 (efficacy ≠ efficiency)]

The LES looks very small compared to the footprint. Either the emitter is actually an SFT12R, or they somehow have access to a 5050 version of the SFT25R!

EDIT: the LES:footprint ratio is too small for SFT12R. So the SFT25R does exist in 5050!

[koef3 (LED tester)]

Heads up to the LED of the ZT40. Does not look like a Luminus SFT-25R in 5050.

New Luminus releases

I am currently testing the LED of the Brinyte ZT40. I am pretty sure that this is NOT the Luminus SFT-25R in a 5050 package. The LES is bigger as for SFT-25R (different LED chip is very likely used, this unknown emitter has 1.8 mm diameter LES, the SFT-25R only 1.7mm), the pattern of the bonding wires is different. Another thing that stands out: the LED chip is embedded too deeply in the frame. Light emitted from the side is reflected back from the silver frame, which reduces the luminance. T…

[koef3 (LED tester)]

And here are more detailed images of the unknown 5050 LED in comparison to a real SFT-25R.

New Luminus releases

Exactly this is the case here. I made a direct side-by-side comparison by both LEDs. Here in normal exposure (SFT-25R G1 BC highest bin code on the right): [image] Here with more contrast: [image] The vias patterns are definitely different between both chips. On the unknown LED, the vias are arranged much more densely, on the SFT-25R less densely. In terms of design, the LED chip of the unknown LED used in the…

There are definitely some differences (vias pattern, chip diameter, bonding wires, metal frame).

[koef3 (LED tester)]

I dismantled the protected cell which is included with the ZT40. (first version, the newer version for the mass-production lights has a USB-C charging port)

It is a Samsung cell (INR21700-50GB). Max discharge current is around 10 Amps (9.7 A).

It is specified with 4900 mAh.

The protection circuit is equipped with 3 STF8233 MOSFETs (each with a source-drain current of max. 11 A).

[koef3 (LED tester)]

(Made a new post for easier linking)

The second variant of the Brinyte battery (with USB-C charging function, which is shipped with the mass-production lights) uses an LG INR51700M50LT cell. This is specified with 5000 mAh. The battery is about 76.3 mm long with protective circuit and will therefore not fit into some lamps.

There are 3x MXN2384 MOSFETs on the circuit board for the protection circuit, each with a maximum drain-source-continous current of 9.5 A.

The charge controller is a LowpowerSemi LP28303A. It can be supplied with 4.5-5.5 V and delivers a maximum charging current of 2.5 A.