Features: The module has intelligent constant current function to ensuring stable operate of LED lights under different voltages. Using energy conversion advanced technology, the module achieves a conversion efficiency of up to 90%. Supports wide ranges of input voltages, adapts to various power environments, and does not require frequent replacement of power devices. Durability and sturdy design, providing excellent shock resistance and extended use. Flexible application scenarios, not only suitable for LED driver, but also for other electronic devices that require constant current and voltages. Specifications: Component: ABS, Metal Size: approx. 48x22.9mm/1.89x0.9inch Attribute: The set contains 5 piece Module nature: Not isolated voltages reduction module Rectification way: asynchronous rectification Input: 7V-35V Output: 1.25V-30V Output current: adjustable up to 3A Conversion efficiency: 92% Output ripples: 50mV 20M bandwidth Switching frequency: 150KHz Load adjustment rate: ± 0.5% Voltages regulation rate ± 2.5% Working temperature: -40 °C to +85 °C Package Includes: 5Pcs Constant Current and Constant Voltages Power Supply Module note: Other accessories demoed in the pictures is not included. Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.