Tag: Test

Voltlog #165 – USAMS 3 Port USB Charger With Display Review & Teardown

In this video I am taking a look at the USAMS 3 Port USB Charger With Display. Turns out the same charger is sold under many different names, and I suspect inside there is the same circuit labeled USB320G.

Like I mentioned in the past China is improving the designs of these charger each year so the situation is much better now than it was a few years back. There would still be the $2 death traps disguised as apple chargers but in the $10 range you can get some pretty decent chargers with adequate protection. This charger has the required protection features to make it safe to use however its not special in any way, the noise level is higher than I would like and the output current of just 3A is not enough for charging 3 devices. Not even 2 at the same time if they both require more current.

Here are links to where you can find this charger: Banggood, Aliexpress,  Amazon.

Voltlog #160 – Brymen BM22s and BM27s Pocket Multimeter Review

Welcome to a new voltlog, this is a follow-up on voltlog #148 the pocket multimeter shootout. In that video I reviewed 4 different cheap pocket multimeters. The general idea was that while some had advantages over others they were all missing important protection features on the input, making them safe to use only with low voltage, low energy circuits.

The guys from Welectron saw that video, they contacted me and said they have something better and they sent me the Brymen BM22S and BM27S for a review.

Welectron is offering a 5 EUR discount code (voltlog5) valid until 31st of May 2018. This will pretty much offer you free shipping for one of these meters which coupled with the 3 year warranty and their nice customer service, makes it a very nice deal if you are in the market for a good pocket multimeter.

You can also checkout my comparison spreadsheet to see how the Brymen meters compare against the other cheap pocket multimeters.

Voltlog #139 – Aneng AN8009 Multimeter Review

In Voltlog #114 I reviewed the Aneng 8008 and I said it’s probably the best $25 multimeter that you can buy. Today we are taking a look at the Aneng AN8009 which is a newer model from Aneng. 

In the end I would say this new AN8009 model is just as good as the AN8008 and they are both great beginner multimeters but they can also be good for the more advanced user who better understands their limitations.

My recommendation is to take a look at the differences between the two and choose based on your needs: ask yourself, do I need temperature measurements? Do I need the extra resistance range? Or do I need the square wave output. Better yet, and this is what I would do, I would get both models to have all of those functions when needed. Also it’s good to have two multimeters because you can measure both voltage and current at the same time.

Here are some links where you can get the Aneng 8009:

Voltlog #122 – C5W LED vs Incandescent Bulb Temperature

Welcome to a new voltlog, in a previous video I showed these C5W LED bulbs that I got from ebay they were very cheap so I put them to a test and discovered they reached very high temperature in just 15 mins of running in free air which got me concerned, the fixture of this bulb could melt.

C5W LED Bulb on Ebay 

C5W LED Bulb on Aliexpress 

C5W LED Bulb on Banggood 

Thermometer used in this video

Voltlog #117 – Ebay Bussman DMM Fuses Fake or Genuine?

In this video we’re going to do some tests on these ebay fuses to try and determine if they come close to the specified ratings of the original fuse.

Links to products shown in this video:

Voltlog #114 – Aneng AN8008 Probably The Best $25 Multimeter

Today we are taking a look at the ANENG AN8008 multimeter. This product was sent to me by banggood.com free of charge for the purpose of this review. They also sent me an ESD mat, because I have two benches in here in only one of them had an ESD mat so I needed a second one.

There is also a newer model, the AN8009 which I also reviewed, you can read about it here.

Links for the products shown in this video are below:

  • Aneng AN8008 Multimeter Link
  • ESD Mat Link