Review: Small Sun ZY-T08 2 x 18650 (Parallel)

That's mines status too. Ordered sunday night and it "shipped" next morning. Tracking stuck at "Acceptance".

-Garry

:(( :beer:

I'm crying in my beer, Garry. TGIF. :bigsmile:

Is it a contact board or driver ? but its 30mm dia

PWM is there , medium to higher freq … Its not Uber slow …

Some one needs to lift the contact board ? Im very busy ATM , exams next week etc , so !

Got the beams up …

Dont be put of by the tint , the camera picked up a lot more blue/purple than the naked eye sees … Thats what I get for not owning a decent SLR with good White balance …

I got my other T08 today. It’s quite a bit brighter than my first one.

Please let me help. I got mine from DX couple of days ago and was planning to write a full review, but you were faster. Thanks for your effort! (And for saving my time :))

PWM is 244Hz on Med and Low.

The contact board is the back side of the driver and it's 30.0mm

There's not much to see at the tail switch...

...but it makes it easy and accurate to measure the current (2.5A, 1.1A & 0.5A on my sample)

The emitter & it's leads are easily accessible for PWM & duty cycle measurements:

..and the results are: 244Hz 49% on Med, 244Hz 24% on Low

For some reason I measured "only" 2150lux @4m (on High, steady after 30s), resulting 34.4kcd (or 370m of ANSI-NEMA FL-1 throw).

2.5A high, 0.5 low, but only 24% duty cycle?

High doesn't have PWM, so maybe it has bit higher efficiency?

Has anyone tried taking out the white centering piece that sits between the LED and the reflector? It made a nice difference with the T13.

How did you get the 24%? Not scope I assume?

If I just use my dmm and got 2.5/0.5 I would just assume it’s 20%.

2.5, 1.1 & 0.5 A currents were measured by shorting the tail switch with DMM probes. This is the current draw before driver.

244Hz PWM & 49% and 24% duty cycles were measured by connecting the DMM probes to emitter leads => real values given to emitter (= after driver)

Hope this clarifies the measurements.

Thanks _the_ for those photos and details!

So is the emitter glued down nicely (i.e. well mounted)? Does this flashlight need any attention? Or is it ready to go? (Apart from a possible resistor mod.)

-Garry

No problem. The emitter was properly glued in my sample. Tail screws were a bit loose, but everything else was good to go. :)

Sorry, but where is the ZY-T13 available with neutral tinted emitter?

Anyone got both, ZY-T13 and ZY-T08? Does T13 throw better or worse? (got T13 on the shelf now, throws IMO decent but AFAIK no STL-V2 class.)

e: Oh nuts… One way to find out - ordered :smiley:

ILF has posted some comparison beamshots and the ZY-T08 does seem to have the edge (but seem darn close to me). See his thread here with photos. Or this thread vs. the fenix TK41.

-Garry

Thanks Gary, looks pretty nice for the price indeed!
Just ordered one, 4,90$ after I slaughtered all my mana-points :wink:
My very firts 2 x 18650 -parallel. I have been waiting to find a good one for some time now…

Not neutral, but slightly better tint. Like 1D vs 1A.

Excuse my noob-ness :stuck_out_tongue: , but why is this light rated at 7.2 - 9v ?
If the batteries are in parallel, shouldn’t the rating be up to 4.5v ??
Am I missing something here?

You’re not missing anything. The listing has to be in error on this point.

Finally got mine today! I compared it to the lights that I have, and its brighter and out throws my TMART UltraFire HD2010, and T13 (same size hotspot). It almost beats my UF-V6. If I removed the white plastic piece, it would probably have an identical throw to my UF-V6!