Most flashlights have PWM. The question is, as JasonWW said, bad PWM or good PWM. The PWM frequency in SP33 v3 is approximately 16 KHz (16000Hz). This is a good PWM.
I thought that was the thread, I just didnt look back far enough, thanks. How do you know the PWM frequency is 16,000 hertz? Did you use an oscilloscope?
Seller made a new proposal
Proposal:
Refund US $ 0.00
Comments:
sorry,friend,due to the virus,many airlines closed,so the logistics update will be slower than usual,please understand.hope you can cancel the dispute.
AE settled in my favor.
AliExpress’ Judgment
Purchase Protection is running out, but package is still in transit Valid
Feel really bad about this because I’d placed five orders before with the Sofirn Official Store on AE for seven flashlights and never had a problem either with shipping or manufacture, was extremely satisfied with them all.
Weird thing, ordered a bunch of magnetic charging cables on eBay the other day and they shipped out almost immediately from the same place as the Sofirns originated, Guangzhou International Center — Tracking even listed the flight they’d be on.
I’m in (another) dispute with them right now through Paypal. An order from their website that made it to the shipping center on March 20th and hasn’t moved. They give the same response about shipping times.
I keep getting sucked back in trying to order from them because they make great lights at a great price. But almost every order has been problematic. Some have eventually made it to me, but half have never arrived (and that’s not an exaggeration). When will I learn?
My experience with them is you get a phony tracking number. It never shows your package leaving China . Sometimes you eventually get the order and sometimes you don’t .
But for some reason I keep making purchases .