Discount on the popular DL24MP load, plus an update
16-07-2025, 12:13
I have two bits of news today. The first is good: the price of my favorite version of the load has been reduced for the sale. The second—well, I hope it’s good too :)
Sale and brief preview of the Fnirsi HRM-10 milliohm meter
21-06-2024, 02:26
I was asked to share information about a sale on Fnirsi’s new milliohm meter. It looks like an interesting little device, so I thought it might be useful to you.
Discount on the RK6006 converter, with and without BT
12-07-2023, 11:09
I happened to notice that RuiDeng's store has a discount on the RK6006 converter, and thought it might be useful to share.
RuiDeng RD6012P adjustable hybrid converter, the next model in the RD6006P series (not a review)
9-11-2021, 14:18
It’s been just under a year since RuiDeng announced the previous version of its hybrid power supply, and now the developers have finally released a new model I’ve been waiting for: the same kind of hybrid converter, but with an output current of up to 12 A. Today’s “not a review” will include a brief announcement, a description, the differences, real photos of the device, and, I hope, a discussion of the new model in the comments.

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A roundup of popular AliExpress products, part 12

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9-10-2021, 20:11
A roundup of popular AliExpress products. I haven't bought these myself, but picked out products that other people buy very often, so there's a chance they're not all as bad as they sometimes turn out to be :)
Discount on 1More Comfobuds Pro ES901 TWS Earbuds
28-04-2021, 01:36
There’s a discount on these TWS earbuds. I don’t use earbuds like these myself, since I mostly work from home, but judging by the reviews, there are no complaints about the quality. I thought they might come in handy for someone.
Sale on the new RD6012 converter
27-05-2020, 11:54
The RD official store has a new product: the adjustable RD6012 voltage converter. I thought this might be useful.
VapCell INR14500 1000mAh 10A H10: Small but Powerful
23-04-2020, 01:59
A relatively short series of reviews of VapCell batteries, featuring some interesting models in my opinion.
Several discounts on Choetech chargers. More discounts added
26-03-2020, 11:57
They sent over a coupon for three Choetech products, and I thought it might be useful.
Choetech 100 W Power Supply (Charger) for $34.13
27-02-2020, 13:16
The Choetech store manager sent me a deal and a coupon for a new charger (power supply) featuring GaN technology, two Type-C ports, and up to 100 W of power.

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Choetech Store Promo Codes

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22-01-2020, 17:47
Almost as a follow-up—though actually, early this morning, the manager of the Choetech store emailed me some promo codes for various products in their store.
Small sale at the Choetech store, promo codes updated
3-01-2020, 12:29
Some discounts popped up at the Choetech store today. At first, I mistakenly thought they were products for review, but then I realized they were just discounts. I even considered buying something—the prices are pretty good, at least in my opinion—so I decided to share them with you.
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AliExpress Black Friday Sale
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29-11-2019, 16:00
AliExpress Black Friday Sale: knives and sharpeners, home improvement supplies, electronics, keyboards and mice, chargers and batteries, household goods, Xiaomi products + Xiaomi components for a smart home, Xiaomi sensors

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AliExpress $8 off $10 coupon for new users

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13-11-2019, 02:19
I came across a couple of coupons for new users and thought they might be useful.

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Discounts from the RDtech store

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13-11-2019, 00:59
Although there’s very little time left before the sale ends, I got an email from RDtech—or RuiDeng, whichever you prefer—today. It included links to discounted products, so I decided to share them almost as soon as I got the email.
A new adjustable converter from Rui Deng that could well become a hit
24-10-2019, 17:45
The latest model of adjustable power supply—or, more precisely, a converter for building one—has appeared in the well-known RD official store. This post is something of a preview, since I don't have one in hand yet. But I'll have a question about that at the end of the post.

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A few useful odds and ends; RDtech discounts expected from August 26

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22-08-2019, 13:56
One of the readers tipped me off about some pretty good prices on useful little items, as well as a couple of popular multimeters. Thought they might come in handy for someone. As more useful items turn up, they may be added to this post.
Vernee Thor-E for $99.99
24-07-2017, 17:15
Special offer: Vernee Thor-E smartphone for $99.99. See the description for details.












