Small Sun ZY-T08

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southland
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viffer750 wrote:

Ledsmoke wrote:

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 Embarassed

I soldered an additional 0.22ohm resistor parallel with the 3 small smd resistors.

1

 

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.


Trying to find the right resistor to do this mod, found the .22 ohm resister in 1/2 watt, 1 watt, 2 watt, 3 watt. Which one should I use and what do the different watt numbers mean?
heggood
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Is this light powered fully with just one battery or does it take both for full power? Is it more safe to use. Just one versus two?

garrybunk
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In stock form one battery is just fine. Cells are in parallel and therefore pretty safe. I do believe it's still best to use matched cells (same brand, same capacity). 

-Garry

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light junkie
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By now but this light and reflector makes a SUPER host for the MT-G2 mod .

Lj

JasonJ
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Has anyone done anything new or interesting to this light in the past 2 years? I meant to buy one long ago, forgot all about it. I’m back to thinking about this light vs the Courui D01, both lights seem to be less prolific on the retailer sites than they used to be.

Is there a newer equivalent light that I should consider in place of the ZY-T08?

cera@1967
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 This light is a good thrower even in it's stock form . A  dedomed XM-L2 , driver resistor mod up to 4-4.5 Amps , a little work on the high of the spacer between led and reflector , double springs in the tail (or wire bypass) , a capable  switch (Osrom) ,and you gone have a new lover...Just give it a try !...

Adrian

JasonJ
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cera@1967 wrote:

 This light is a good thrower even in it’s stock form . A  dedomed XM-L2 , driver resistor mod up to 4-4.5 Amps , a little work on the high of the spacer between led and reflector , double springs in the tail (or wire bypass) , a capable  switch (Osrom) ,and you gone have a new lover…Just give it a try !…

Nice… good to know! I can’t believe I haven’t bought one of these already… but I go through “interest phases”, and often my interest in flashlights wanes in the winter months. Probably because I get up north into the woods off of the lake every week in the summer; it provides LOTS of opportunities to use high powered flashlights.

Mike C
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Personally I think this light is way too big for tail switch only so I recommend installing a momentary side switch with a dual switch compatible driver. Mine was just laying in the drawer collecting dust before I did it.

JasonJ
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Mike C wrote:
Personally I think this light is way too big for tail switch only so I recommend installing a momentary side switch with a dual switch compatible driver. Mine was just laying in the drawer collecting dust before I did it.

A good idea. Did you post about that mod anywhere on the forum? I’d love to see what and how you completed that (not that I couldn’t figure it out, but it helps to have a baseline idea).

Mike C
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Probably overkill for your intentions but I went all in and designed my own dedicated drivers for series cell conversion: http://budgetlightforum.com/node/40759
For just side switch mod with existing LED you could piggy back the current driver with any driver of your choice. There is a lot of room inside that pill.

JasonJ
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Mike C wrote:
Probably overkill for your intentions but I went all in and designed my own dedicated drivers for series cell conversion: http://budgetlightforum.com/node/40759 For just side switch mod with existing LED you could piggy back the current driver with any driver of your choice. There is a lot of room inside that pill.

Read through your thread.. nice work. You and my dad would have gotten along nicely.. he scratch built a lot of electornics in his years. Former Motorola field Tech.. that man could wield a soldering iron and acid etch a pcb board like no one else. The crazy cool stuff he built…. much like your work.

Thanks for the tips.. I’ll be ordering soon. Looks like Fastech has it in stock at the best price. About $21.

MRsDNF
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The o’ring on the battery tube to seal with the head is way to small on the ZYT08 I’ve been getting from Fasttech. I’ve been using C8 bezel o’rings that work a lot better.

 

djozz quotes, "it came with chinese lettering that is chinese to me".

                      "My man mousehole needs one too"

old4570 said "I'm not an expert , so don't suffer from any such technical restrictions".

Old-Lumens. Highly admired and cherished member of Budget Light Forum. 11.5.2011 - 20.12.16. RIP.

 

JasonJ
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Good to know.. I had read that the o-rings used were kinda crap.

Has anyone put an XPL-HI in one of these? If so, I’m curious how it compares to a dedomed XML2.

Might just have to try it myself.

zeremefico
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I have tried with xpl hd but did not love the beam. It had some ring around spot.

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kiriba-ru
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Mike C wrote:
Personally I think this light is way too big for tail switch only so I recommend installing a momentary side switch with a dual switch compatible driver. Mine was just laying in the drawer collecting dust before I did it.

imagebam.com
Mike C
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kiriba-ru wrote:
Mike C wrote:
Personally I think this light is way too big for tail switch only so I recommend installing a momentary side switch with a dual switch compatible driver. Mine was just laying in the drawer collecting dust before I did it.

imagebam.com

Nice work! Personally I’d still rather just put a side switch in Smile

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