DIMMING A 10WATT LED The following circuit is a request from a reader. He wanted to dim a 10 watt LED from a 4.2v Lithium Ion cell. The current will be about 3 amps and a power MOSFET is needed to deliver this current. By Collin Mitchell - 30 LED Project.
In this instructable I'm going to show you how you can make your very own automatic plant watering system. This solution requires no pump!The benefit of using an automatic watering system is that you avoid having your plants start to dry ou