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12V auf 3A 3V / 3.3V / 3.7V / 5V / 6V / 2A 9V DC-DC-Abwärtswandler Modul Kfz-Adapter
US$11.54 US$11.99

Q: Please specify efficiency!

gefragt von Wengel auf 2020-07-31 12:58:56

laiqiuting Thank you for your feedback, now you can click to view detailed product information, we have optimized it

2020-08-04 01:53:54 Hilfreich (0)
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Antworten (1)
Wengel 03/11/2018
At first use the quality seem very good :-)
Großer 250ml Spritzeninjektor für Einlauf, Darmreinigungsreiniger
US$18.47 US$19.99
1
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Wengel 21/10/2018
10 out of the 50 M3x8mm had non-3M thread. Impossible to mount a M3 screw.
Suleve ™ M3AR1 M3 Aluminiumlegierung Halter Bolzen 8-35mm rotes rundes PCB Board Abstände Halter 10 Stücker
US$9.23 US$9.99
0
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Wengel 09/06/2018
Good value and I'm satisfied with these and will buy them again. But the finish on the "back-side" has scratches and it is somehow important for have a clean and even surface for optimal heat transfer. But I'll use thermal paste/tape to even it out so it's okay. But for high-performance-heat-transfer applications you might want to do some after-finish-improvement on these yourself.
5 Stück Aluminium-Wärmeverteiler 100 x 25 x 10 mm
US$10.38 US$10.99
0
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Wengel 09/06/2018
The finish on these jacks are perfect. The "spinning-pressure-connector-brackets" (what to call?) are spinning freely as they should but do they provide good connection? I plugged them in a banana socket and got 0 ohm resistant. At 20v@1.5A the voltage drop was also zero, no problem. One could wish for a voltage drop test at 30 amps but that has to be another day ;-)
4pcs B7 4mm Draht Musik Lautsprecher Bananenstecker Verbindungsstück
US$4.99 US$6.99
0
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Wengel 02/06/2018
Rather bad finish, but it does work and will probably do the job just fine so I guess it's OK for the price.
2 Stück 48MM isolierte Lautsprecher-Terminalstecker
US$8.07 US$8.99
0
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Wengel 24/05/2018
I tested it against my Fluke 177 from 2.5v to 30v. It did a good job all the way.
Geekcreit® 0,28 Zoll 2,5V-30V Mini Digitalvoltmeter Spannungstester Zweilinien-Voltmeter
US$7.24 US$8.99
0
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Wengel 24/05/2018
I bought green and white. The LED has good enough light all the way down to 5 volt, even from any angle. Good build quality. It does take a rather small finger-tip to activate the switch, but I guess that's the whole idea with this kind of switch that you can activate is by mistake.
12v 4 Pin 12mm LED Licht metall Taster Momentschalter Wasserdicht Schwarz
US$15.39 US$16.99
0
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Wengel 17/05/2018
No description of terminals,B1, B2 and B3. No description on how to wire when charging the batteries. Haven't tried the board yet. Build quality seem good. See attach wiring diagram.....this helped a lot to understand :-)
4S 30A 14.8V Li-Ion Lithium 18650 Batterie BMS Packung Leiterplatten Schutz Board Balance
US$5.99 US$13.99
0
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Kommentar (1)

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