KX-T21 is the flashlight I won from Geekbuying Second Anniversary Giveaway
specs from geekbuying.com
•Power by CREE XM-L2 LED, Cree’s new highest performing LED ever
•Quality Aluminium Alloy Construction
•5 Modes for different situation use
•Extension Tube Bundle make it more handy
•Support to charge directly with the 18650 batteries inside
•IPx7 Waterproof
Specification
Brand: COFLY
Model: KX-T21
Color: Dark Grey
Material: Aluminum alloy
Emitter Brand: Cree
LED Type: XM-L2
Emitter BIN: T6
Number of Emitters: 1
Working Voltage: 3.7~8.4V
Power Supply: 2*18650 (Not included)
Current: 2.5A
Theoretical Luminous: 1200 lumens
Runtime: 3 Hours
Number of Modes: 5
Mode Arrangement: Hi/Mid/Low/Fast Strobe/SOS
Mode Memory: No
Switch Type: Reverse clicky/Clicky Switch
Switch Location: Tailcap
Lens: Glass
Reflector: Aluminum Smooth
Beam Range: 300cm
Dimensions: 22.8cm x 3.7cm x 3.7cm
Weight: 210 g
their shipping was fast around 2-3 weeks
arrived well packaged in a box with a lot of bubble wrap
size compared vs ultrafire F13
the flashglight can be used with single or 2x 18650s
glass lens with GITD o-ring
reflector compared vs P60 reflector
the pill has a bit strange shape ,it has 20mm star and 17mm driver.
the driver ,it has 24awg wires.
this flashlight has an option to charge it ,this work by having 2 pills ,this is the second pill which has the connection for the charger
unfortunately I don’t have a charger to test it ,but the idea is when you unscrew it to reveal the area for the charger ,inside it create space between the normal pill and this one ,so the power from charger goes only in the batteries area.
the tailswitch
cause it don’t tailstand I added an o ring (still is not perfect but now it stands ok)
ceiling test with high
O-rings and threads are greased and it has a nice smooth screwing
the only 2 thing I didn’t like is the old xml version , and that it don’t tailstand but both can fixed very easy
the flashlight has a really nice color
easy to mod .
from the results I got I assume the driver is H 100% M 50% L 25% ,with 2 batteries I got 1.4 Amps in tail on high
have in mind my Amp meter is not that good and I did not had 2 same batteries for current testing