Quality assurance, this product uses SMT chip production process, adopts high-quality PCB and industrial-grade chip, can work in high temperature, low temperature, high humidity environment 1. Make sure your battery has enough voltage for the controllers to recognize the battery type (12 V / 24 V) before installation. The battery cable should be as short as possible to minimize loss. The regulator is ONLY suitable for lead acid batteries: OPEN, AGM, GEL. (NOT suitable for lithium batteries, Ni-MH battery) 4.ONLY suitable for working with photovoltaic solar panels. (NOT for other DC or AC power source) Specifications: - Battery voltage: 12V/24V auto - Charge/Discharge current: 10A 20A 30A - Max solar input. 5 Meter solar extension Lead. 3 meter battery to charger controller cables. The item "100w mon Flexible solar panel kit 20A controller Motorhome caravan boat 12v" is in sale since Saturday, March 27, 2021. This item is in the category "Home, Furniture & DIY\DIY Materials\Electrical Supplies\Alternative Energy Supplies\Solar Power Supplies\Solar Panels & Kits". The seller is "renewables333" and is located in Lancashire. This item can be shipped to all countries in Europe, Antigua and barbuda, Australia, United States, Bahrain, Canada, Brazil, Japan, China, Israel, Hong Kong, Indonesia, Malaysia, Mexico, Singapore, South Korea, Taiwan, Thailand, Bangladesh, Belize, Bermuda, Bolivia, Barbados, Brunei darussalam, Cayman islands, Dominica, Ecuador, Egypt, Guadeloupe, Grenada, French guiana, Jordan, Cambodia, Saint kitts and nevis, Saint lucia, Sri lanka, Macao, Maldives, Montserrat, Martinique, Nicaragua, Oman, Pakistan, Peru, Paraguay, Reunion, Turks and caicos islands, Aruba, Saudi arabia, South africa, United arab emirates, Chile, Bahamas, Colombia, Costa rica, Dominican republic, Guatemala, Honduras, Jamaica, Kuwait, Panama, Philippines, Qatar, El salvador, Trinidad and tobago, Uruguay, Viet nam.