Check the listing for details. LM2577 Input 4~10V Output DC12V 3A High Current Power Module/ Regulator. Condition: New. Listed at 7.50 USD. 12V DC-DC Step-Down Power Module Step-down Power Module Summary: Input DC 4V~11VOutput: 12V, 3A 40W Product Description This is a switching mode 12V regulator that generates much less heat than the 78xx series regulators. No heat sink is required for 1A or less usage. No pigtail is required. Specification Input: 4V~11V DCPower: 40W maxOutput: DC 12VCurrent: 2.5A 3A maxIsolated output: NoCommon Ground: yesSize: 50mm x 50mm x 24mmWeight: 5oz Shipping Fast shipping from Sacramento, CA. Please ensure that the shipping address provided at checkout is accurate.We are not responsible for shipping address issues. Please be aware that weekends and holidays DO NOT count as a business day. Payment We accept Paypal as payment and only directly through the eBay listing Returns We provide 30 days returns on most items. Please notify us within 30 days if you want to file for a return. Shipping and Handling fees is not refundable Items to be returned must be inresaleable conditions. We reserve the right to reject the return. Feedback It is our mission to provide the best possible product and customer service to our online customers. We understand the hesitations and concerns associated with the purchase of items(s) online. We want to minimize those concerns by making our transactions as easy as possible. We will gladly leave you positive feedback, we respectfully ask that you rate us accordingly. If you do have any problem(s), please give us an opportunity to correct it before leaving negative feedback. We will do our best to rectify the issue. ©2019 ColdFusionX