Review: Sunwayman D40A 4xAA XM-L2 Flashlight

Got mine from WB, took about 10 days.

Really like it, replaces my EA4 as favourite AA-light!

My first multi AA’s flashlight.
I love it!

Someone just reported his D40A battery shorted. Check your D40A for any potential issue especially the insulator of the positive spring. As picture below shows, the spring and insulator were kind of melted due to very high heat.

Oh no!! The burn marks, and that was with eneloops too! :~

LOL, maybe the price will come back down now.

Has it shorted or was it a bad contact causing the damage?

I’m still pretty upset by the price increase. I really wanted one. Just to show my displeasure with FastTech, I just placed a $225+/- order with them that DID NOT include the D40A. That will teach those blankety-blanks not to mess with me!

Besides some ancillary BS, the order includes-

Nitecore EA4W
SWM C10R
SWM M11R
X-Power Galaxy
Ultrafire UF-H2B
and some Cree XM-L Zoomer

Also just picked up a P-Rocket from Shiningbeam, so, needless to say, when Mrs. Cone figures all this out… Oh, boy!

No one knows the reason yet, this torch is sent back to seller according to the original owner.
Owner mentioned he switched on the light and it was fine, then he played with it for a moment, and then it could not be switched on anymore. He thought batteries were emptied, and he put it aside his bed and went to sleep. When he woke up, he found it to be very very hot.
I am wondering can it be over tightened and crack the insulator. Just speculating at this moment.

Maybe not known, but were the batteries installed with correct polarity?

He was playing with the light, and it was working fine. Don’t think batteries were installed incorrectly.

Hahaha, oh yes !

Not even if freezing?? (improvised heater could turn into a bomb though!)

I had been following the post in Shoudian forum. According to Sunwayman’s offifcial, the reason of the shorting seems to be the black isolator around the head’s positive contact came loose. and they checked their inventory and couldn’t find a second unit to have the same problem. The post had been deleted which I assumed was requested by Sunwayman’s official. So I have no way to know what is the outcome. But Sunwayman do respond in time and admitted that they will look into the design to avoid anything like that ever happen again. Kudus to Sunwayman!

I ordered my D40A from FT on June 10 before the price went up. Still hadn’t shipped as of Sunday night so I sent a email to FT. Got a reply this morning saying it is out of stock and will be back in stock in two days at which time they will ship it to me.
Sounds to me like Sunwayman may have put pressure on FT to sell the light at the higher price found at other sites. Nice to know I will be getting my light for $52 that I ordered it at.
I love my EA4 XM-L2 and if this light is an improvement on the Nitecore, I will be a very happy camper.

So we can’t control the price any longer. No way? :wink:

runtime? and are those batteries in 2 parrellel or 4? or in series?

I have not measured run time, and the cells are four in series.

I don't like the new price.

I decided to try this link:
https://support.fasttech.com/general/VOLM/1374600
The bulk price turned out to be much lower. In my case, the quote was for a bulk quantity that can be described by this mathematical expression: sin(π/6)*[√4] + (3!)^2 - (46656)^(1/3)
:wink: :wink:

I sent in a request for the large quantity of (1)….we’ll see what they come back with!

(I have no idea about what your equation means, but hope it = (1))