THe light is two cells in parallel so 2 cells in their place will likely fry the driver if it’s designed for 1 cell operation.
The thing folks don’t realize about the Small Sun ZY-T13 is the cutout like keyway gap in the head threads that screws to the tube. I didn’t like it. You don’t notice it until you take the head off. But it was rough as all get out. This ZY-T08 doesn’t have that. And the machining is a lot better in my opinion especially around the head. And so is the anodizing.
Here’s a couple more photos.
That is an awesome looking light!!! I can’t wait!!!
Rick,
You will love the head on this light and how it is machined. I especially love the battery machined out slots. The Xtar 18700 2600mah fit perfectly in this light. No problems whatsoever. Like I said I am sold on this light.
Mine only shipped a few days ago … Drats !
Mine shipped yesterday due to they were out all week… :cry:
Payment was confirmed on the 30th. They still haven’t shipped mine. How is it during Chinese New Year? Do they not ship for the entire month?
That is when I ordered mine on the 30th.
This is really a good light. I got it today, and I am satisfied with the quality and the brightness. It puts out 600 otf lumen and 41kcd. A little strange thing around the regulation: when I put weaker cells in the light, the brightness increases with about 10%. I am a little confused because I did a brightness runtime test with 2 TF flame, and the light looks well regulated, so I don't know why increases the output sometimes with weaker cells.
There is a possibility to modify the led current with a resistor change.
Here is the brightness runtime graph after a conservative resistor modification on the driver:
I told Rick that’s about what I expected going off of what my other lights were. I’d say those numbers are about dead-on.
One of the best price / value ratio in the market.
Hi Viffer750. What kind of mod did you do to the driver and why did you (of all people) do a "conservative resistor modification" ??
I'd want to drive that thing... You already know what I'm gonna say don't you 
Ilikeflashlights says his sample has tint bit cooler than the t13 (which IMO has about perfect for a thrower, ~1D, the stl-v2/v6’s have 1A tints). How’s the color on yours?
Increased output with weaker cell (and by weaker I assume you mean lower voltage) implies the driver regulates to constant power, which is frankly surprising for a light in this price category. Might be able to use cr123’s after all. Anyone brave enough to give it a shot? :bigsmile:
Love this light. But mine arrived with one spring way off centre, it still worked but didn’t look good. So I took the switch off and re-soldered it in place. Found the four screws that hold the switch plate onto the body were all not tight at all. Might be worth checking your screws before they fall out guys.
Anyone got the driver board out yet? How to do it??
I soldered an additional 0.22ohm resistor parallel with the 3 small smd resistors.
This increases the driver/led current. Now the measured current on the driver side is 3.2A.
And the output brightness increased from 600 to 750 lumen, and from 41kcd to 50kcd.
Sweet! TY viffer750 :-)
Hmm, hard to determine the tint bin for me, what I see, it’s cool white, cooler side of the tint bin, the spill with slight purple tint, the spot is pure white
You can clearly see the tint difference between the T08 vs the T13 in post #7. Like I said it’s a cooler white.