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12V a 3A 3V / 3.3V / 3.7V / 5V / 6V / 2A 9V Módulo reductor de corriente continua (DC-DC) Adaptador para automóvil
US$11.54 US$11.99

Q: Please specify efficiency!

Preguntado por Wengel sobre 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 Servicial (0)
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Wengel 03/11/2018
At first use the quality seem very good :-)
Jeringa grande de 250 ml para enema, kit de limpieza de colon y limpiador
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 Aleación de Aluminio Separadores Studs 8-35mm Rojo Redondo PCB Placa Espaciadores 10pcs
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 piezas disipador de calor de aluminio 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 conector b7 4mm música alambre cable del altavoz conector banana
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.
Enchufe de terminal de altavoz de audio aislado de 2Pcs 48MM
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® Medidor de voltaje digital miniatura de 0,28 pulgadas y 2,5 V-30 V Probador de voltaje Voltímetro de dos líneas
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 Pines 12mm interruptor de Botón de metal LED Momentáneo impermeable Negro
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 Batería de Litio 18650 Li-ion 14.8V Paquetes BMS Balance de la Junta de Protección de PCB
US$5.99 US$13.99
0
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