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expiredItsSoCheap | Staff posted Today 04:19 AM
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expiredItsSoCheap | Staff posted Today 04:19 AM

Wanptek 30V 10A Adjustable DC Power Supply $40.99 + Free Shipping w/ Prime

$41

$90

54% off
Woot!
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Woot [woot.com] has Wanptek 30V 10A Adjustable DC Power Supply for $40.99. Shipping is free w/ Prime. Otherwise shipping is $6.
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Woot [woot.com] has Wanptek 30V 10A Adjustable DC Power Supply for $40.99. Shipping is free w/ Prime. Otherwise shipping is $6.

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12 Comments

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Today 04:27 AM
1,357 Posts
Joined Aug 2005
desidude2000Today 04:27 AM
1,357 Posts
Wish I had one of these at home when I was in college.
Today 04:54 AM
336 Posts
Joined Aug 2022
TheOgreToday 04:54 AM
336 Posts
If you do any kind of tinkering with electronics, be it motors, cameras, PCB's, lights, etc. Having one of these at your bench feels like a necessity after having one. No more scavenging for power supplies to find the right voltage, or adjusting buck converters.
Today 05:29 AM
787 Posts
Joined Nov 2022
CleverCreature256Today 05:29 AM
787 Posts
Quote from TheOgre :
If you do any kind of tinkering with electronics, be it motors, cameras, PCB's, lights, etc. Having one of these at your bench feels like a necessity after having one. No more scavenging for power supplies to find the right voltage, or adjusting buck converters.
I pity the more youthful electronic experiment for not having a cheap and plentiful supply of used HP power supplies. Clean clean clean. Did I say clean power?
Today 05:53 AM
268 Posts
Joined Sep 2020
ThriftyThread5737Today 05:53 AM
268 Posts
https://www.amazon.com/30V-Variab...r=8-1&th=1 $46 on Amazon doesn't seem to be a sale price even so not so slick of a deal! Plenty others available at or close to this price as well so I mean get it if you really need it but ZERO reason to jump on this deal IMO!
Today 06:30 AM
143 Posts
Joined Sep 2013
AlwaysLearning123ABCToday 06:30 AM
143 Posts
https://a.co/d/03WLTx89

Its actually 50 bucks. Looking into getting one. Reviews on Amazon say they trip the breaker..

anyone recommend a specific model?
1
Today 12:23 PM
362 Posts
Joined Apr 2025
DealDadyToday 12:23 PM
362 Posts
Quote from AlwaysLearning123ABC :
https://a.co/d/03WLTx89

Its actually 50 bucks. Looking into getting one. Reviews on Amazon say they trip the breaker..

anyone recommend a specific model?
People dont understand amps
Today 12:34 PM
3,187 Posts
Joined Jun 2010
boobolooToday 12:34 PM
3,187 Posts
amazing what you can get for 40 bucks now

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Today 01:10 PM
1,200 Posts
Joined Sep 2022
TealIdea227Today 01:10 PM
1,200 Posts
There's been a bunch of mediocre Woot deals (as compared to Amazon's regular price) posted recently. Anyone have any thoughts on that?

Also, how well are commodity rotary encoders (such as these) holding up nowadays?
Today 01:22 PM
87 Posts
Joined Oct 2021
avidmtbikerToday 01:22 PM
87 Posts
I have this exact model, it's been great for me. Had it since 12/23.

These also work great for bringing back lithium ion batteries that have dropped their voltage too far to charge with the OEM charger. I don't use mine often, but waited too long to buy one. Definitely handy for when you do need it. I wish I bought one a long time ago.
FWIW, I paid $65 from Amazon, but it's no longer listed as available.
Today 01:27 PM
47 Posts
Joined Jul 2011
Overclocker2Today 01:27 PM
47 Posts
Sold out as of the morning of 2/24/26
Today 01:32 PM
785 Posts
Joined Mar 2009
VladStarToday 01:32 PM
785 Posts
Quote from AlwaysLearning123ABC :
https://a.co/d/03WLTx89

Its actually 50 bucks. Looking into getting one. Reviews on Amazon say they trip the breaker..

anyone recommend a specific model?
I've bought this model back in 2019 for infrequent use, no issues (it's currently NLA, but there is a newer model available).
https://a.co/d/087DgkRK
I thought I'd be using its software with USB computer interface and memory buttons, but I was wrong - never used them. This is something that you or other folks may consider, when buying.
Last edited by VladStar February 24, 2026 at 06:39 AM.
Today 01:43 PM
1,869 Posts
Joined Feb 2004
KachurToday 01:43 PM
1,869 Posts
Quote from booboloo :
amazing what you can get for 40 bucks now
About half of what you could have gotten in 2000

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