QTY 1 - Color Changing Light Bulb & Cord with USB Plug (Adaptable!) This color changing bulb & cord is a great way to display some of your favorite crystal lamps! We recommend trying it out with selenite or any variety of translucent quartz. Push up the metal appendages around the bulb to fit the hole at the base of your lamp. Then place the bulb however low or high you’d like. This bulb turns on once it’s plugged in, so if you’d like it to turn off you’ll need to unplug it. Note: Crystals shown in photo are not included. However, they may be purchased separately. This listing is for 1 color changing bulb with USB cable plug CRYSTALRIVERGEMS | WHOLESALE | BULK Qty 1 - Color Changing Light Bulb & Cord with Usb Plug