*Please Read. SPECS below Here is my quick set up and usage tips. I needed something quick and cheap to convert the 24 v battery to run 12 v LED Lights. Hopefully my video will give you an insight of what you can do with this neat gadget that costs under $14. The promotion is now over, so the price in the video no longer valid and back to normal cost of $13.96.
New NC version, integrated voltage and current regulation function, makes voltage and current regulation more convenient, accurate and stable
The module is adjustable step-down module which can change the output voltage by regulating the blue adjustable resistance of the module. The voltage difference between input and output voltage is 1V and the minimum output voltage is 0.8V.
Superior LED, Bright and easy to see
Dual LED display, the LED end with "V’ and "A". Straightforward to distinguish between current and voltage display. This module adopts high quality LED digital tube, super bright, can be clearly displayed even under the sun.
The module uses SCM take sample and display voltage, and carries out a large amount of data processing, which makes LED display more precise and stable.
Qualified Chip and High Conversion Efficiency
To guarantee the high performance and quality of product, we adopt a high quality chip, with high efficiency, low heat and the maximum efficiency is up to 95%. The maximum current can reach 5A. Meanwhile, with the original TI Op Amp to control the output current, makes the overall output more stable.
This module adopts low ESR original SANYO filter capacitor which can make the ripple voltage as low as 50mV. In the meanwhile of keeping the high performance and reliability of the module, use full surface mounting technology and re-flow soldering to realize the module the ultra small volume.
Adjust Voltage Current by Pressing the Silicone Button
This Module is designed with NC, regulating voltage and current by "light touch" switch. It gets rid of disadvantages of previous analog control module, which makes more convenient to adjust voltage and current.
A light-touch switch is equipped with a silicone button cap, with good elasticity and handling feeling bring you a more precise setting experience. Neatly laid out and soldered, with the mounting holes, which is easy to hook up the wires. You can use it to DIY a high-power LED constant current driver, rechargeable lithium batteries charging, solar panels, etc.
1. Use as an ordinary buck module with over current protection capabilities;
2. Use as a battery charger;
3. Use it as a constant current LED driver module.
Input Voltage Range: 5-32V not to over 32V, or it will be damaged
Output Voltage Range: 0-30.0V step-down mode, the input must be 1V higher than output
Output Power: 30W max
Output Current: 0-5A over 2A should enhance heat dissipation
Output Voltage Setting Resolution: 0.1V
Output Current Setting Resolution: 10mA
Power / Load Effect: CV 20mV, CC 30mA
Voltage Measure Accuracy: ± 1% + 1 digits
Current Measure Accuracy: ± 1% + 2 digits
Dimensions: 75 * 43 * 12 mm
Weight: 32 gr
Application caution for Lithium batteries.
Charge for lithium ion battery: when the voltage of lithium ion battery is low, charge it by constant voltage directly will lead to large differential pressure and excessive current during charging, which will cause damage on the battery. Therefore, at the beginning of charging for the battery, we should use constant current and then automatically switch to constant voltage when charging to a certain extent.
2.Module output terminal string has a current sampling resistor, there will be 0-0.2V voltage drop after connected to the load, it is a normal phenomenon.
3..If its output is more than 3A/35W, please enhance heat dissipation!
Thanks for watching..