You put too much faith in the tracking info. I dont have my box anymore but im pretty sure even though the tracking shows some random zip code in CA it originated from China based on the markings. If it’s just a label being created and it doesnt get picked up in the US system for weeks i’m pretty certain it didnt actually originate here and the tracking info is just wrong…
Received my lights yesterday—-Nice Quality—Especially for the money—— The SST20 4k tint is very nice—-Also the 50.2 5k tint is very nice
SST20 4k ——- w/Sony 5A—Turbo turn on 693 lm 637 lm @ 30 sec —— High 575lm —-It’s a wonder why some have a hard time knowing if it’s in Turbo
XHP 50.2 5k——w/Sony 5A— Turbo turn on 1940lm 1780lm @ 30 sec
My tube is home made and not calibrated with said lights—-I do get results well with in range with others on specific lights though
We must warn, gentlemen … The bezel is not unscrewed. Glued in?
You may be right.Besides a Flashaholic I am a Trackaholic!!
I have been working on lowering my expectations and NOT putting too much faith in people[primarily reliability]….very few people are as reliable,considerate and responsible as myself!
,another wolfdog quote:
Expectations beyond logic result in disappointment.
Cereal_killer can you elaborate on the driver more? Is it just a fet with pwm or is it regulated in any mode?
The Guy from DHL[Phone conversation] said that my Tracking number is a USA Tracking number,not China, Italy, Germany ect.
Maybe,this package originates from China, Neal has an associate and/or warehouse in El Monte,CA. OR Compton, CA.[Address on First package] it lands at this warehouse and they slap the label on it and then shipped to me.
My guess is it is originated from CA. in that Chinese owned warehouse and then shipped. It is FREE shipping so they are not rushing. Even when my FIRST order got close to me[MARYLAND] ….it took 4 days to go the last 100 miles!Finally arriving via USPS.
EN ROUTE TO DHL ECOMMERCE DISTRIBUTION CENTER
Sun, January 27, 2019 at 5:51 PM
Feb 5, 2019
EL MONTE CA, CA 91731
PHOENIXVILLE, PA 19460
Jan 27, 2019
EN ROUTE TO DHL ECOMMERCE DISTRIBUTION CENTER
ELECTRONIC NOTIFICATION RECEIVED: YOUR ORDER HAS BEEN PROCESSED AND TRACKING WILL BE UPDATED SOON
If sitting for weeks in Neal’s mystery warehouse in Compton sounds OK to you then sure.
Seems more likely DHL has a huge international sorting center in Compton and you have a “US” tracking number which only means you don’t get any updates while it’s overseas. Rest assured, if it’s in some private warehouse past customs things would not take this long.
Stock is just a straight FET driver. Actually 2 FET’s in parallel.
Any idea what keeps the LED around 5 amps in turbo? I think it’s more than just the forward voltage cause you see the LED spike up in current when changing modes.
You can not compare the Two, however, this is very, very impressive.
I ordered another space heater for one of my Tenants, Monday @ 8:30PM. I just received it! This is NOT PRIME…….this is w/ FREE SHIPPING!!
38.5 HOURS it took from ordering until it arrived at my door.
Here’s one for you—
Expect people to be the way they are—You won’t be disappointed —
I’ll bet that heater originated close by
yeahh…Just googled it……11 locations within 30 miles! KOP Warehouse is 10 miles away!
My neighbor needed help taking the trash out,74F in his unit,59F in mine!!!...I am half Husky!
I have electric heat,Not efficient…,blast in morning, maybe when a guest is here[!!],space heater in Bedroom keeps it very warm.
There’s a R015 limit resistor (0.015ohm) between the FET’s source and GND. I’ve got a pic hang on…
just received my ns22
I chose 21700 tube and stainless steel bezel, and it came with both 18650 tube, 21700 tube, aluminium bezel and stainless steel bezel!
I measure barely 1000lm, hotspot is well defined but I haven’t measured cd yet.
it’s a good host, I want to try a white flat on this flashlight
@Cereal-killer, if I understand this well, it’s actually using the FET as a linear regulator?
If so, that is very interesting.
Man that is too bad I was hoping it would be like their last model of this light. It had a linear driver:
Now i’m not sure I want to put a white flat in it
No, it’s using a .015ohm resistor as the only current limiter, it’s a standard FET driver, no regulation.
To be regulated the resistor would be on the gate side of the FET and the MCU would sense current output (voltage drop over the resistor) and alter the FET’s pwm signal to maintain that voltage at a set point.
Aren’t lower modes actually regulated though?
Pics taken from ZeroAir’s website for reference.
Using dual FETs with one being used as a CC FET would make plenty of sense.
Would removing this and replacing it with a metal jumper make it like a typical FET?
There’s what appears to be a smaller SOT-23-3 FET on the board up at the top (in my pic) but I’m not sure what it’s there to do…I do know both of the large FET’s are simply in parallel (all 3 legs are parallel between the pair which IMO makes zero sense, why waste money)