CD 4001 is a quad, 2 input NOR gate IC made by Fairchild Semiconductors. It is a monolithic CMOS transistor based IC having efficient source and sink [[wysiwyg_imageupload::]]capabilities. Circuits that use this IC can be easily operated using battery as CD4001 is a low power consumption IC. A 14 pin DIP package, this IC can work at temperatures upto 1250. The circuit in this project is built around a commonly used CD4001 IC and few more discrete components. The circuit described can be used to decorate your Christmas tree with colorful lights. The blinking of LED’s will create a festive appearance which will enhance the Christmas mood. This lighting system can also work as night light or can work as an accessory for internal decoration purposes. This circuit doesn’t draw much of power and can be powered using a battery or an AC source with an adapter.