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

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CheapThrills
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How do your lights transfer heat as stock?

I think mine does it veeeery poorly Big Smile
Had it running for a while on table. PCB quite warm ad so on but body totally cold. Could use a bit of that paste…
Pill has a lot of thread play.

gadabout
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I looked at this thread for the first time this morning. Having read the initial review and the first few replies I was getting pretty interested.

Now, some time and 5 pages of follow-ups later I have decided that I really can't be bothered.

I know this is a Budget Light forum but sheesh!  Seriously? Cardboard, bits of paperclip, ill-fitted "hammered-in" screws, wildly varying current readings, possible "turbo" modes that come and go at random, drunken monkeys, a possible second batch, plastic that may actually be aluminum depending on how you tied your shoelaces this morning...  Sorry I'm out.

Everyone loves a bargain and it seems a few people got lucky with early iterations of this light.  I also understand that for those of you who have already bought one, this thread will continue to provide useful discussion and tips on how to get your money's worth.  But for a few dollars more it seems I could get the HD2010 with vasty better QC and similar output.

This Small Sun = large headache.

Life's too short.  Have fun guys. Laughing

gords1001
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I was thinking the same thing, then I went for a walk with my step son and had a play with the light……nah, its worth it. Silly

Plus, I have picked up a variable resistor today, assuming its the right range, I should be able to dial in 3.5 – 4a and really wake the sucker up…..

Besides, current hd2010’s don’t seem to be without their issues, that’s what stopped me ordering one and ordering this “no issue” thrower instead….

BetweenRides
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gadabout wrote:

I looked at this thread for the first time this morning. Having read the initial review and the first few replies I was getting pretty interested.

Now, some time and 5 pages of follow-ups later I have decided that I really can't be bothered.

I know this is a Budget Light forum but sheesh!  Seriously? Cardboard, bits of paperclip, ill-fitted "hammered-in" screws, wildly varying current readings, possible "turbo" modes that come and go at random, drunken monkeys, a possible second batch, plastic that may actually be aluminum depending on how you tied your shoelaces this morning...  Sorry I'm out.

Everyone loves a bargain and it seems a few people got lucky with early iterations of this light.  I also understand that for those of you who have already bought one, this thread will continue to provide useful discussion and tips on how to get your money's worth.  But for a few dollars more it seems I could get the HD2010 with vasty better QC and similar output.

This Small Sun = large headache.

Life's too short.  Have fun guys. Laughing

Man! That reads like a good novel. Laughing

gadabout
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Thanks for the heads-up gords.  I'll certainly do a bit more research first.

 

gords1001 wrote:
Besides, current hd2010's don't seem to be without their issues, that's what stopped me ordering one and ordering this "no issue" thrower instead....
gadabout
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Mate, when you go through the entire thread in one sitting it reads like something out of Mad magazine.  Laughing

 

BetweenRides wrote:

Man! That reads like a good novel. Laughing

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gadabout wrote:

Thanks for the heads-up gords.  I'll certainly do a bit more research first.

 

gords1001 wrote:
Besides, current hd2010's don't seem to be without their issues, that's what stopped me ordering one and ordering this "no issue" thrower instead....

I have no doubt that T08's popularity is its downfall. It suffered from high demand that triggered volume production, thus starting batch with quantity over quality "mode".

If you're willing to go the extra step for a serial-batteries light, ZY-T13 is a very good light for $24. No problems heard so far. Very good constant power regulation driver, aluminium reflector (62mm, same size as T08), throws very well stock at ~1A@8.4V but can be resistor-modified for more power. NO plastics (except centering ring, but you want it that way). Mine can do 500m throw after dedome and resistor mod, haven't even tried for further throw but I believe it will do more. 

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My HD2010 died before I could really even use it! Really disappointed!  My ZY-T08 has been awesome. I love it! Very little risk of burning it up like the HD2010.

-Garry 

My Bike Lights Thread, Optics (TIR) Comparison Beamshots, Diffusion Techniques

, MTBR’s Lights & Night Riding Forum
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Rusty Joe
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garrybunk wrote:

My HD2010 died before I could really even use it! Really disappointed!  My ZY-T08 has been awesome. I love it! Very little risk of burning it up like the HD2010.

-Garry 

And my new HD2010, as said elsewhere, is not without its problems. Can’t wait to try this one.

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Pulsar13 wrote:

gadabout wrote:

Thanks for the heads-up gords.  I’ll certainly do a bit more research first.

 

gords1001 wrote:
Besides, current hd2010’s don’t seem to be without their issues, that’s what stopped me ordering one and ordering this “no issue” thrower instead….

I have no doubt that T08’s popularity is its downfall. It suffered from high demand that triggered volume production, thus starting batch with quantity over quality “mode”.

If you’re willing to go the extra step for a serial-batteries light, ZY-T13 is a very good light for $24. No problems heard so far. Very good constant power regulation driver, aluminium reflector (62mm, same size as T08), throws very well stock at ~1A@8.4V but can be resistor-modified for more power. NO plastics (except centering ring, but you want it that way). Mine can do 500m throw after dedome and resistor mod, haven’t even tried for further throw but I believe it will do more. 

But can it be shortened to accommodate 1 × 18650 or 2 x rcr123s?

devman
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garrybunk wrote:

I don’t remember hearing from anyone who bought it from DX, but I bet there is someone (or a few).

Maybe gords just needs to order another one or two and see what he gets. Smile  He likes to order lots of lights.

-Garry

I ordered mine from DX. Sept 6 ’12

Aluminum reflector, 2 retarded monkey tailscrews, and $5 says my driver is held in with paperclips and chewing gum.

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Rusty Joe wrote:
Pulsar13 wrote:

gadabout wrote:

Thanks for the heads-up gords.  I'll certainly do a bit more research first.

 

gords1001 wrote:
Besides, current hd2010's don't seem to be without their issues, that's what stopped me ordering one and ordering this "no issue" thrower instead....

I have no doubt that T08's popularity is its downfall. It suffered from high demand that triggered volume production, thus starting batch with quantity over quality "mode".

If you're willing to go the extra step for a serial-batteries light, ZY-T13 is a very good light for $24. No problems heard so far. Very good constant power regulation driver, aluminium reflector (62mm, same size as T08), throws very well stock at ~1A@8.4V but can be resistor-modified for more power. NO plastics (except centering ring, but you want it that way). Mine can do 500m throw after dedome and resistor mod, haven't even tried for further throw but I believe it will do more. 

But can it be shortened to accommodate 1 x 18650 or 2 x rcr123s?
If you have a lathe anything is possible. A single celled T13 would be hot!
Johm
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JohnnyMac wrote:

If you have a lathe anything is possible. A single celled T13 would be hot!

My thoughts exactly.

But since I don’t have a lathe the best I could do was order this:

Big reflector single 18650 (MXDL clone or something).

It has only been a few days, so I have some waiting to do.

Rusty Joe
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Johm wrote:
JohnnyMac wrote:

If you have a lathe anything is possible. A single celled T13 would be hot!

My thoughts exactly.

But since I don’t have a lathe the best I could do was order this:

Big reflector single 18650 (MXDL clone or something).

It has only been a few days, so I have some waiting to do.

Skyray AO clone. I have it. No mode memory! Great output, and decent throw. Just not HD2010 or above level(s).

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devman wrote:
garrybunk wrote:
I don’t remember hearing from anyone who bought it from DX, but I bet there is someone (or a few).Maybe gords just needs to order another one or two and see what he gets. Smile
He likes to order lots of lights.
-Garry
I ordered mine from DX. Sept 6 ’12 Aluminum reflector, 2 retarded monkey tailscrews, and $5 says my driver is held in with paperclips and chewing gum.

Mine is from DX , shipped 9/19: aluminum reflector, driver press fit & tight.

=the=

 

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Plastic from manafont.

Johm
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Rusty Joe wrote:
Skyray AO clone. I have it. No mode memory! Great output, and decent throw. Just not HD2010 or above level(s).

Thanks Rusty Joe for the identification. Thankfully i’m not expecting a throw champ from this light, just a pleasing throwy beam, what i have hypothesized to be similar to the T13’s in a less bulky form factor.

Rusty Joe
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Johm wrote:
Rusty Joe wrote:
Skyray AO clone. I have it. No mode memory! Great output, and decent throw. Just not HD2010 or above level(s).

Thanks Rusty Joe for the identification. Thankfully i’m not expecting a throw champ from this light, just a pleasing throwy beam, what i have hypothesized to be similar to the T13’s in a less bulky form factor.

NP. I’m getting rid of mine simply because of the lack of mode memory, but also because sometimes on high I can hear the driver whine. And I thought I’d love the ergonomics of it, but I don’t. You may dig it, but I just couldn’t get into mine. But as far as light output—all I can say is, try running it off an unprotected 2600 mAh 18650 from KD (the pink ones) and enjoy the output!

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Johm wrote:
Rusty Joe wrote:
Skyray AO clone. I have it. No mode memory! Great output, and decent throw. Just not HD2010 or above level(s).
Thanks Rusty Joe for the identification. Thankfully i'm not expecting a throw champ from this light, just a pleasing throwy beam, what i have hypothesized to be similar to the T13's in a less bulky form factor.

 

Did you see this topic? : http://budgetlightforum.com/node/9728

Only a little modification on the driver, and this little light becomes a beast.

One of my A0 clone puts out 900otf lumen ( really !) and more than 45000cd, and the other with a dedomed xm-l 85000cd. Impressive numbers.

unique engrish language... Smile

 

Johm
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viffer750 wrote:

Did you see this topic? : http://budgetlightforum.com/node/9728

Only a little modification on the driver, and this little light becomes a beast.

One of my A0 clone puts out 900otf lumen ( really !) and more than 45000cd, and the other with a dedomed xm-l 85000cd. Impressive numbers.

Yes Viffer750 I have seen the thread, thanks for pointing it out.

As for the driver i am not concerned, I will replace it with a single mode (maybe 2 mode) 7135 based driver.
I will also try to install a forward clicky.

I plan to replace the T13 on my bicycle with this as a signaling/off road light.

The T08 would do a good job at that but seems hard to mount.

gords1001
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We have seen 3a out of my poorly performing zy-t08………

Now I need to get the right variable resistor to do the job right, anyone know of a 0 – 1 ohm sub miniature pot is made and if so, any links?.

CheapThrills
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gords1001 wrote:
We have seen 3a out of my poorly performing zy-t08………

Now I need to get the right variable resistor to do the job right, anyone know of a 0 – 1 ohm sub miniature pot is made and if so, any links?.

I ordered these a while ago:
http://www.ebay.com/itm/370570061343?ssPageName=STRK:MEWNX:IT&_trksid=p3...

They should fit since I had there before a physically larger resistor (but it had wrong Ohm value).
Naturally these are not as good as pot ´s since they cannot be adjusted…

gords1001
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They would do it, just wanted to be able to dial the current in.

The pots I have go down to .5ohm, I just need to get much closer, the pot I got was rated 50r, perhaps I need to get a “k” rated pot? I don’t know, I’m very rusty on my electronics…

viffer750
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this is what I ordered, I dont know how will work

http://www.ebay.com/itm/2-x-20-OHM-TRIMPOT-TRIMMER-POTENTIOMETER-3296W-3296-/250853024381?pt=LH_DefaultDomain_0&hash=item3a6801627d

20ohm 25 turns, so I think it can be set quite accurately

unique engrish language... Smile

 

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Oh, the way we got to see 3a was to use crap ultrafire Grey’s, on decent cells, back down to 2.34a, regardless of cells – Panasonic’s mainly, cgr18650’s etc, the crap fires gave a .6a boost that was noticable in use. The pot I’ve fitted for now gave .4 of an amp, I was just hoping to dial it in a bit more. Need more adjustment…. J)

gords1001
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That should certainly be better than the one I got, it went from .5 ohm to 46.5 ohm in a 270 degree sweep.

Now I have a better idea what to look at, I’ll check maplin first, might be able to come back to this tomorrow, I’m just trying to convince my six month old that half ten at night is sleepy time, not crawl all over daddy play time…..

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Got mine this morning!

Folks, if you haven’t jumped on the T08 bandwagon, get up and get! This is one awesome light! It is well driven – definitely brighter than my HD2010 running a 26650, although my 2010 may be a touch underdriven – and super nice and ergonomic in the hand. Doesn’t feel excessively weighty or bulky and is super nice with just about any grip you want to take. Feels nicer to carry than the HD2010 for sure. Right now, it is running two Tenergys. Beam is a nice, tight circle with hardly any other colors or rings visible to the eye and it is bright white in the center!

I had to take it apart and remove some plastic machining bits from around the reflector that had fallen on the emitter dome, but it didn’t take long. Manafont has always come through for me. ordered on the 1st. Arrived on the 16th. Not too bad. The reflector is plastic, but ask me if that takes away any excitement for testing tonight. It totally doesn’t!

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viffer750 wrote:
this is what I ordered, I dont know how will work "http://www.ebay.com/itm/2-x-20-OHM-TRIMPOT-TRIMMER-POTENTIOMETER-3296W-3...":http://www.ebay.com/itm/2-x-20-OHM-TRIMPOT-TRIMMER-POTENTIOMETER-3296W-3... 20ohm 25 turns, so I think it can be set quite accurately
Thanks for that link, Viffer!  I just ordered 4 packs of those (8 total) shipped for under $4.  What a bargain!!  Can't wait to use one in my T13 and another in the T08 DX is sending me to review. Wink
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Johnny, what I found is it needs to go below .46ohm (lowest limit on the ones I got) to have a significant effect, I got more current by using crap cells. If they do go down to .1 or so ohm, I’ll be ordering a few myself. 8)

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Guys is it confirmed that the T08 from DX comes with a aluminum reflector?

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