Fangrui Product Details High-efficiency Conversion: Experience The Power Of A 2800w High-power Dc-dc Boost Converter Module, Designed To Efficiently Increase Voltage From 14-90v Input To 18-140v Output While Maintaining A Constant Current. Adjustable Settings: Tailor Your Voltage And Current According To Specific Needs With Easy-to-adjust Controls, Making It Ideal For Various Electronic Applications. Robust Design: Built To Last, This Module Features Durable Components That Withstand Rigorous Use, Ensuring Long-term Reliability And Performance. Colour:as Shown Material:pcb Due To Different Product Batches, The Appearance May Vary, Which Does Not Affect The Use Package Contents: 1 * Dc-dc Boost Module Only The Above Package Content, Other Products Are Not Included. Note: Light Reflection And Different Displays May Cause The Color Of The Item In The Picture A Little Different From The Real Thing. The Measurement Allowed Error Is +/- 1-3cm.