I dont have a stock MT90P+. I bought Vinhs fully modded Spec C version with driver VNX2. Features continuous turbo(no step down). 2S4P battery configuration. can run any number of cells. 1 cell can still give over 2mcd, Internal resistance made as low as possible. With all the cells Vinh measured 2.9mcd. However he only measures at 7.5 meters. I measure at 10 meters. I got 3.3mcd. I was like damn maybe i dd something wrong. after mutiple tests i was getting from 3.15 - 3.3 mcd every time. My suspensions were confirmed when another member with the same Spec C light got 3.2mcd. He also measured at 10 meters. That said I still dont think even 10 meters is far enough. The beam on this beast is still converging on its self at 10 meters and does not fully mature until about 15 meters so for now take these throw readings with a grain of salt until i can try a lux test farther away.
I did a heat test to see how well this massive host can tame the SBT90 led . I did with out fan first and then with the fan. I think the results speak for them selves. With no fan output only drops 10% from minute 1 - 10
I compare the light to a few of my other lights below.
Top left MT90Vn+ Spec C, Top right Maxtoch L2K LEP, bottom is my K75vn(low exposure shot at 9 meters to show intensity difference)
I just received my Astrolux MF05 from BangGood today. What a beast. Light works great, except for the fan. Fan will not turn on with 3 clicks to the button. When inserting a freshly charged 21700 battery, plus (+) side facing in, there is no initial flashing button light. Fan does not work! I've watch a youtube video of a working fan and followed the button clicks to lock/unlock, turn on, etc... and nothing happens.
Battery: 21700 Samsung INR21700-40T 4000mAh High Discharge Flat Top
Any ideas?
I will contact BangGood tomorrow and see if it's even possible to get a replacement fan.
All that matters is the battery length and shape. Capacity and chemical type are irrelevant.
Before assuming that the fan driver is defective, I would make sure that we are getting power to the fan driver. The lack of initial flashing button light indicates it may not be getting power.
I don't have my light yet, but several people have said that you really have to crank down on the fan handle tail cap to make the connection work. And that hand tightening wasn't enough. There is a video on youtube showing the fan handle with your battery, so perhaps it's just a matter of really tightening the cap? Good luck on getting it to work, Zandar
For the fandle tailcap, you need to insert a nickel into the slot and rotate until properly seated/tightened. You need a nickel for that last little bit of leverage.
I dismantled the fan handle as much as I dare. I can access the wires connected to the top of the fan motor. I assume the fan driver is somewhere inside the handle, under the button's location. Any suggestions on how I can test the voltage leading into the fan driver without any further dismantling of the fan handle and/or cutting wires?
I saw that video and I tried that.
I used a quarter to tighten the tail cap.
I sent a message from BangGood.com requesting help with the defective light. No reply yet.
I don’t have many details on how the fandle is designed. Can you look down the battery tube and see a pcb? Does it have a spring, button or solder blob for the cathode to contact? I would compare it to other peoples to make sure nothing is different. For instance, maybe you’re supposed to have a button soldered in the middle in order to make contact and your light may be missing that button which is preventing the battery for making contact.
Is the spring in the tail cap putting tension on the battery when you screw it in?
Are all the bare metal sections of the tail cap where they make contact all clean and shiny?
Spring and spring holder clean?
Battery ends clean?
Is enough of the anodization removed where the fan tail cap contacts the body? If not, it might need to be scraped a little.
These are all the basic things that you can check without opening up the fan. If all of these parts look good and you’re tightening up the tail cap snug and still not getting power, then there’s not much else you can do. If you have a spare battery you can try that. Maybe even an 18650 would be worth trying. If none of that works you just have to contact Astrolux about getting a replacement fan. I wouldn’t recommend disassembling it because you would probably void the warranty.
Looking down the battery tube, I see a spring soldered in 2 places to a PCB. However, there are no visible surface mounted components on this side. There is no access to anything else within the battery tube where the spring is soldered. Also, on the fan side of the battery tube, there are 2 wires running from the battery tube to the fan itself. I checked voltages there when clicking the button quickly 3 times; result -> 0.0v.
Both the battery tube and end cap have springs. There are no solder blobs. And yes, the springs put a fair amount of tension on the battery contacts surfaces. All contact surfaces are clean, including battery and springs. I have 2 batteries which have been tested as good and at 4.2v. Batteries have the same specs as BangGood recommended on the production page.
Also, there is clean bare aluminum surfaces inside the battery tube and on the end cap where the two surfaces make contact. I always snugged up the end cap with a quarter for each test.
I also tried out an 18650 high-drain battery with similar specs as the 21700 as far as drain ratings.
I sent 2 messages 2 days ago from the BangGood.com site about this issue. No response yet. They state responses are within 24 hours. I also sent a direct message via my email today to Cservice@banggood.com (from a google search) and to trigger@deals.banggood.com (from the original email order confirmation). There was no chat or phone support available to post-sales issues. They seem to want to make if very difficult for the customer to contact them.
Oh yeah, Banggood will definitely take their time trying to wear are you down. Most of these companies will try to drag things out and irritate you so that you will give up. You just have to stick with it. They were closed over the weekend and are coming into work right about now. So you might hear back in the next day or two. They may ask you to make a video showing you putting a battery in, tightening it up and then what it’s doing. If so, use a low-resolution like 480p in order to keep the file size small in case you need to send it as an attachment.
I've spoken with PayPal today and they said if I don't hear from them in 3 days or if they are not cooperative, I can open up a claim and it might be possible to get a 100% refund. we'll see.
Usually PayPal will allow them a couple of weeks to make it right. Or if you open a claim they will allow them a couple of weeks. I’m not sure why they said a 100% refund when it’s only the fan that has a problem.
For those using USA Priority Mail there is hope, mine cleared customs yesterday and arrived today.
It is worth the wait , this thing is just the kind of crazy I was hoping for. I’ll stop giggling to myself eventually… probably
(UPDATE: Nov. 2nd 2020: Now the fan works. I have replaced the bad controller circuit board with a simple on/off switch. I un-soldered the circuit board and soldered the two black wires together. The red and white wires are soldered onto a switch from a battery operated Halloween candle that fits into the opening)
The fan handle on my new Astrolux MF05 flashlight does not work. There were no instructions about the fan included, and there was no “+” or “-” symbol to tell which way to put the battery in. I have read online that it needs a triple-click with the button to turn it on, but it still doesn’t work.
I have used a good fully charged 21700 battery, tightened the cap securely, and put the positive end in first. I only saw the green light in the button light up one time when putting the cap on, now it never lights up after many tries. I suspect the control module is blown.
I have contacted Banggood customer service, but have not been able to get a replacement fan.
I want to write a review and post videos about how incredibly bright the MF05 is, but the fan not working distracts from how good it is.
, this thing is just the kind of crazy I was hoping for. I’ll stop giggling to myself eventually… probably