DIY electronics fans, this adjustable timer module is super handy! You can set delays from just 10 seconds all the way up to 24 hours—super versatile for all kinds of projects. It works with a wide voltage range (3.3V to 18V), so you can power it with batteries, USB, or a small power supply. Brand new and unbranded, but solid quality from China. Perfect for automating lights, fans, pumps, or any gadget you want to turn on/off after a set time. Great for home automation, aquariums, gardening systems, or science experiments. Small, easy to wire, and super customizable. If you love tinkering with Arduino, Raspberry Pi, or simple circuits, this timer module is a must-have for your toolbox. Get creative and make things work on your schedule!