10 Best

Bench Power Supplies

of December 2023

  1. Product Highlights
    • 【output enable/disable button】in the process of using the bench power supply, output button can prevent us from forgetting to turn off the output and causing damage to the load. just press this button to turn on or turn off the output of the power supply. this makes it more convenient for you to use the power supply.
    • 【high-precision encoder knob】the dc power supply has a precise encoder knob. you can press the knob to toggle each digit, then turn the knob in the 0-9 range to customize each digit. set the voltage or current you want more accurately. the option to set the voltage or current can be toggled with the (v/a) button.
    • 【precise 4-digit led display】the variable power supply with a high-definition 4-digit display, which can display three values of voltage, current and power at the same time. the data is accurate to 0.01v and 0.001a. the bright white digital display helps you to operate as usual in the dark, and you can adjust the brightness of the screen as needed.
    • 【overcurrent protection】when the ocp function is turned on, if the load equipment is short-circuited during operation, the adjustable power supply will automatically stop output and send a buzzer to alert the user. protect the adjustable power supply and load from damage.
    • 【application field】production line testing, repair of mobile phones/ computers/ electrical appliances, product aging and electroplating, battery charging, laboratory, scientific research, teaching, etc.
  2. Product Highlights
    • 【output switch control】when using the dc power supply in experiments or work, the output button can prevent you from forgetting to turn off the output and causing damage to the load. press the output button to turn on or off the output of the power supply. the status can be seen in the indicator light on the left side of the display, making it easier for you to use the ...
    • 【4-digit display screen】variable power supply has 0-30v 0-10a high-definition display screen, which can simultaneously display three values of voltage, current, and automatically calculated power. it has constant voltage (c.v.) and constant current (c.c.) modes, which can be automatically switched. the indicator light of the working status can be seen on the display scr...
    • 【high precision encoder knob】unlike ordinary potentiometer knobs, this dc power supply is equipped with a high precision encoder knob that has strong accuracy and stability. pressing the knob to change the digits to the left, and rotating the knob to adjust the set voltage or current for each digit between 0-9. make work more convenient and flexible!
    • 【overcurrent protection】the adjustable power supply has an ocp switch button, which allows you to select whether to turn on or off the ocp according to your work needs. when the ocp function is enabled, if the load device is short-circuited during operation, the adjustable power supply will automatically stop output and emit a buzzer to remind the user. protect adjustab...
    • 【excellent after-sales service】providing high-quality products is our major commitment to our customers, and each product has been repeatedly tested. if you encounter any problems with the product you receive, you can always contact us. diaiary benchtop power supply provides a 5-year warranty plan and online technical support.
  3. Product Highlights
    • 🥁 【output enable/disable button】in the process of using the bench power supply, output button can prevent us from forgetting to turn off the output and causing damage to the load. just press this button to turn on or turn off the output of the power supply. this makes it more convenient for you to use the power supply.
    • 🥁 【high-precision encoder knob】the dc power supply has a precise encoder knob. you can press the knob to toggle each digit, then turn the knob in the 0-9 range to customize each digit. set the voltage or current you want more accurately. the option to set the voltage or current can be toggled with the (v/a) button.
    • 🥁 【precise 4-digit led display】the variable power supply with a high-definition 4-digit display, which can display three values of voltage, current and power at the same time. the data is accurate to 0.01v and 0.001a. the bright white digital display helps you to operate as usual in the dark, and you can adjust the brightness of the screen as needed.
    • 🥁 【overcurrent protection】when the ocp function is turned on, if the load equipment is short-circuited during operation, the adjustable power supply will automatically stop output and send a buzzer to alert the user. protect the adjustable power supply and load from damage.
    • 🥁 【application field】production line testing, repair of mobile phones/ computers/ electrical appliances, product aging and electroplating, battery charging, laboratory, scientific research, teaching, etc.
  4. Product Highlights
    • 【digital adjustment】: this power supply is encoder adjustment, it can be pre-set to the parameters you need and through the output button to turn on or off the output of the power supply (when you trigger the ocp protection can press the output button to lift the protection state)
    • 【cc/cv automatic switching】: constant voltage and constant current values can be preset by coding knob, and automatically switch cc/cv state according to the load state. the product has ovp, ocp, scp, temperature-controlled heat dissipation and other perfect protection mechanisms to effectively extend the service life of the product.
    • 【high precision and small size】: the power supply adopts 4-digit led display, voltage display 0.01v, current display 0.001a. voltage, current, power three windows display (0~120v/0~3a adjustable). weighing only 2.47 pounds, the size (7.48*3.54*5.9 inches) is easy to carry.
    • 【usb fast charging interface】: the power supply is configured with 18w fast charging interface, supporting a variety of fast charging protocols. automatically adapted to the fast charging protocol of the device being charged. the usb can save your workbench space and power your electronics.
    • 【ocp short circuit protection function】: press the current code switch for 3 seconds (can turn on or off the short circuit protection alarm function). ocp enabled, when the external load short circuit or overcurrent power supply will stop output and sound an alarm (can effectively protect the tested products) you can get (power supply * 1, british standard ac power supp...
  5. Product Highlights
    • ✅【high-quality & multiple protections】longwei 30v 10a variable power supply use premium electronic components, provide reliable working status and prolong the product life effectively.the power supply comes with over-voltage, over-current, over-power, over-heat, short-circuit, five powerful protection function. in addition, the power supply variable displays voltage, cu...
    • ✅【2 groups of internal memories】you can set 2 groups of commonly used voltage and current combination and easily recall them by press “m1-m2”. use the “adjust” knob to set new combinations. applies for laboratory, school, repair, electrolyzation, electroplate, brush plating, lamp test, aging testing, battery charge, home diy and other requirements. ✅【usb interface & wit...
    • ✅【higher sensitivity & precision】this 30v 10a programmable bench power supply has a high resolution of 0.01v and 0.01a.it is designed for for cb radio power supply, lab power supply ,teaching supplies,work bench ,electronic projects. encoder switch is used on longwei 30v 10a dc power supply version to replace the potentiometer switch which is widely used but not easy to...
    • ✅【output switch control】- sometimes we need to switch between different voltage or current outputs, but we often forget to unplug the previous instrument and cause to burn out, which often occurs in the maintenance. output switch is designed to solve this problem. by pressing the on/off key, the required voltage and current can be adjusted without the actual output powe...
    • ✅【various application】applies for cb radio power supply, lab power supply ,diy, electroplating kit,teaching supplies,work bench ,electronic projects .(buy now risk-free with 30 days free of return,we provide 12-month after sale service, lifetime technical support. please feel free to contact us if you have any concerns,we will reply to you to solve your problem in 24h.)
  6. Product Highlights
    • 【3 groups of memory storage】different from general power supply, this variable power supply is equipped with three groups of internal memories. you can pre-set 3 groups voltage and current combination that you frequently used and then just recall the memories by pressing the button m1/m2/m3. this is a convienient design to save your time!
    • 【reliable & multiple protections】this adjustable power supply comes with four powerful protection function including over-voltage, over-current, over-heat, short-circuit. designed with perfect ovp and ocp short circuit protection, the power supply will automatically stop output and send a buzzer to alert the user when short-circuited of the load equipment occured. the s...
    • 【higher precision & easier to set】this dc power supply has a precise encoder knob and it can display voltage, current and power at the same time. the output voltage and output current can be continuously adjustable between 0 and nominal value by using coding potentiometer. the setting value can be also pre-displayed for easy use and adjustment.
    • 【adjustable output enable/disable button】when using the benchtop dc power, the output enable/disable button can prevent us from forgetting to turn off the output and causing damage to the load. just press this button to turn on or turn off the output of the power supply. this makes it more convenient and more efficient to use the bench power supply.
    • 【wider & various application】the variable dc power supply is compact and lightweight and it only weighs 2.5lb and measures 7.4 x 3.5 x 5.7in. it also supports a variety of fast charging protocols. the dc bench power can be widely used in mobile phone maintenance, computer maintenance, battery charging, aging testing, laboratories, school teaching and production line as ...
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