How long is going to last I don’t know, but at the moment works perfectly. Used to charge li-ion batteries, testing car brake light. Perfect

電圧の設定が桁毎なので、少々コツが必要ですが、全体としては、使いやすいです。USB出力がある点も便利です。値段を抑えつつ、十分な機能を備えていると思います。

Ótima fonte! Estável e precisa !

Das Jesverty Labornetzteil DC Regelbar (30 V, 10 A) ist ein vielseitiges und präzises Gerät, ideal für den Einsatz in Laboren, Werkstätten oder für Elektronik-Enthusiasten. Mit einer Ausgangsspannung von 0 bis 30 Volt und einem Strombereich von 0 bis 10 Ampere bietet es eine flexible Spannungs- und Stromversorgung für verschiedene Anwendungen.Hauptmerkmale:Präzise Einstellung: Dank der fein justierbaren Regler können Spannung und Stromstärke exakt eingestellt werden, was für empfindliche elektronische Arbeiten unerlässlich ist.4-stelliges LED-Display: Das große, helle Display zeigt die aktuellen Werte für Spannung, Stromstärke und Leistung in Echtzeit an, wodurch eine genaue Überwachung ermöglicht wird.Sicherheitsfunktionen: Ausgestattet mit Überspannungs-, Überstrom- und Überhitzungsschutz gewährleistet das Netzteil einen sicheren Betrieb und schützt sowohl das Gerät als auch die angeschlossenen Komponenten.Kompaktes Design: Trotz seiner Leistungsfähigkeit ist das Netzteil kompakt gebaut und passt somit problemlos auf jeden Arbeitstisch.Anwendungsbereiche:Dieses Labornetzteil eignet sich hervorragend für Tests und Reparaturen von elektronischen Geräten, Entwicklung von Schaltungen, Ladeanwendungen und andere Projekte, die eine stabile und einstellbare Gleichstromversorgung erfordern.Kundenbewertungen:Nutzer loben die zuverlässige Leistung und die einfache Handhabung des Jesverty Labornetzteils. Besonders hervorgehoben werden die präzisen Einstellmöglichkeiten und das gut ablesbare Display. Einige Anwender weisen darauf hin, dass der Lüfter bei höheren Lasten hörbar ist, was jedoch die Funktionalität nicht beeinträchtigt.Fazit:Das Jesverty Labornetzteil DC Regelbar (30 V, 10 A) bietet ein ausgezeichnetes Preis-Leistungs-Verhältnis für alle, die eine zuverlässige und flexible Stromversorgung für ihre Projekte benötigen. Mit seinen umfangreichen Funktionen und Sicherheitsmerkmalen ist es eine empfehlenswerte Investition für Profis und Hobbyisten gleichermaßen.

El producto es como lo describió el vendedor, y si me sirve para mí trabajó que es la reparación de celulares

For the price, this is a great general purpose power supply for electronic projects and many other applications. The displayed numbers are generally within 1% or +/- 1, whichever is greater. The displayed current when the power supply is in constant current mode can be inaccurate. In the sample I received, at low currents, the current it limits to is about 2mA less than the limit displayed. Strangely, at currents above 15mA, when the the supply is in CC mode, the current value displayed is the value of the current limit and not the measured current which is actually 2mA lower.The manual fails to explain a few features of the power supply. Turning the voltage knob changes the blinking voltage digit. To get a voltage digit to blink, you have to momentarily depress the voltage knob. The digit will blink for 3 seconds after it has been selected or changed. These rules make unintended voltage changes less likely. The current knob works the same way for setting currents. Voltage and current changes can be made at any time and are well behaved. I had a power supply that occasionally generated large voltage transients when being adjusted but this one doesn't do that. The documentation mentions Over Voltage Protection but doesn't say anything about its operation. If you press and hold the Voltage adjust knob for 3 seconds, it shows you that the OVP is enabled and set to 33V. You can't disable it or change the voltage and the OVP light is always on. This is not a very useful feature since the only way the output can get to 33V is by being driven by an external power source. When the over voltage is detected, the supply disables the output and the OVP indicator blinks but the supply can't do anything to reduce the output voltage. The Over Current Protection can be enabled and disabled and the threshold is separate from the CC mode current setting. It can be set by tapping the current knob to get to the digits of the current display after the long press of the knob that takes you to the place in the UI where you can turn OCP on and off. The description and manual also tell you how to enable and disable OPN but they don't say what OPN is. It appears to control the state of the output when the unit is first powered up. When enabled, the output will be enabled after power up and, when disabled, the output is disabled after power up. When enabled, you can put the supply on a timer or a smart plug and have it power something with the same settings it had when it was powered off, when it gets power.Here are some technical details about the supply that may not interest most readers. There are two general types of power supplies: switching and linear. Although the description doesn't say it, this is a switching power supply and that comes with some pros and cons. The pros are lighter weight, higher efficiency and low cost. The cons are more electrical noise on the output and poor transient response. The implementation of this supply does a good job minimizing the cons but they're still present. At high load currents, noise from internal switching results in very brief 50mV spikes in the output voltage. The spikes are smaller at lower output currents and probably won't cause problems in most applications. 10A transients in load current result in 300mV jumps in the output voltage. I have attached scope captures of the noise and the voltage transient.The output has 2000uF of capacitance fed through a current measuring shut by a switching power supply with 3300uF of output capacitor in parallel with a 660 Ohm resistor. Note that turn on voltage ramp will be limited by the current limit and the 2000uF output capacitor in some configurations. Note also that there is no additional circuitry to disconnect the load from the power supply. When the output is turned off by the user or a protection feature, the switching power supply is simply disabled. Thus, if there is no load when the output gets disabled, the output voltage decays like a 660 Ohm resistor in parallel with a 5300uF capacitor over many seconds. The large output capacitance can be a little dangerous if you're not careful when using the current limit feature. For example, you can use the power supply to light an LED by setting the output voltage to a voltage higher than the LED's required voltage and setting the current limit to the current you want to drive the LED at. This will work fine if you connect the LED with the power supply disabled and then enable it. However, if you set the voltage much higher than the LED's working voltage, enable the supply and then connect the LED, the output capacitance will be charged to the high voltage before the LED is connected and will discharge through the LED when it gets connected; the constant current feature can't limit the resulting current surge. This could damage the LED.