QS1212CCBD80W power DC module — flexible buckboost power module for LED driving, battery charging, and automotive power applications. Key benefits Delivers reliable power output for LED lighting, battery charging and automotive power without needing separate converters. conversion efficiency (up to 90.5% per datasheet) reduces heat and wasted energy, improving runtime and overall system reliability. Builtin protections (undervoltage, overtemperature, shortcircuit) protect batteries, LEDs and the module itself and allow safer use with automotive and solar systems. Improved thermal design and robust magnetic components enable higher continuous output and lower operating temperature. Primary features Model: QS1212CCBD80W, designed for power LED power supply, touch battery charging, automotive power supply and car charger uses. Versatile compatibility: suitable for leadacid batteries, lithium batteries, solar batteries and general buckboost power supply tasks. Airfoil cooling: enhanced cooling design increases allowable output power. With a 28V input and additional fan cooling, the module can deliver about 120W. efficiency: conversion efficiency up to 90.5% (see datasheet efficiency curve for details). quality inductor: large Sendust core inductor wound with two parallel 1.2 mm enameled copper wires for lower loss, lower heat and improved efficiency. Precise adjustment: branded 3296W multiturn potentiometer provides precision and low drift for accurate output control. Stable constantcurrent capability: independent reference IC and multiple alloy sampling resistors provide stable constantcurrent output with minimal temperature drift. Adjustable undervoltage protection: configurable undervoltage cutoff protects batteries and allows safe operation with solarcharged systems. Overtemperature protection: thermal protection reduces output power gradually when components overheat (powerdown protection mode) and automatically restores normal output as temperature falls — avoids abrupt shutdowns that could harm batteries or LEDs. Shortcircuit protection: builtin output shortcircuit protection eliminates the risk common to boost modules that lack this safeguard. Performance and reliability highlights Designed for continuous power use with improved heat dissipation and quality magnetic components. Precision control and stable constantcurrent operation make the module suitable for sensitive charging and LED drive applications. Multiple hardware protections provide safer integration into automotive, solar and battery charging systems. Practical use scenarios power LED lighting driver: provide stable constantcurrent drive for LED arrays in workshop, offgrid lighting or retrofit applications where thermal management and efficiency are important. Battery charging and maintenance: charge or maintain leadacid or lithium battery packs from a variable DC source (including solar inputs) with adjustable undervoltage protection to prevent overdischarge. Automotive power and charging: use as a car charger or onboard power supply to step up/down vehicle voltage for accessories, mobile charging or auxiliary systems while protecting the vehicle battery. What to expect in operation Efficient conversion and strong cooling let the module run longer at higher power before thermal limits are reached. Fine output adjustment with the multiturn potentiometer and stable current regulation from precision reference and sampling resistors. Builtin safety features reduce risk to connected batteries, LEDs and the module itself during abnormal conditions. Model: QS1212CCBD80W. For full electrical characteristics and efficiency curves, refer to the product datasheet.