Thank you for viewing! This is a 3-KEY controller that can control LED strips, etc. Simply connect it between your LED and a power source such as a battery, and you can control ON/OFF, light dimming, flashing, and flashing speed. It can be used for lighting in hobbies, passenger cars, and trucks (12V-24V vehicles). The controller is very lightweight, weighing only about 5g. It can be easily incorporated by simply connecting it between the power supply and the LED, so you can use it in various ways depending on your ideas. Specifications Voltage: DC12V～24V Patterns (including all lights on): ON/OFF (hold down the SPEED button) : 6 modes Flashing speed: 5 levels Brightness (dimming): 7 levels Ships from Japan (Hyogo Prefecture). Although it is new and unused, there may be some minor stains due to being an imported product. Please understand this beforehand. We try to ship as quickly as possible, so thank you for your cooperation. We will ship with other products as well, so thank you. ★About Shipping★ Basically, it will be shipped the day after payment is confirmed. It may vary depending on the timing. We may be significantly delayed in shipping due to going out, etc., so please contact us if you are in a hurry. With that said, please bid after understanding the above. Thank you very much.