This set of 2 Halloween light bulbs includes one flickering orange bulb and one dim black light, perfect for creating a spooky atmosphere during the holiday season. The dark (black) light casts an almost purple glow, not black. The orange bulb is clear, with a flickering orange filament. See photos. With a standard size and easy installation, these bulbs are suitable for indoor use. They are new, old stock, from Walmart. The traditional Halloween colors add an extra element of mystery, making them a unique addition to your Halloween decor. These brand new old stock bulbs from around 2010 easy screw into most standard lamps. Please note the photos in the listing are not intended to show the condition of every box in this lot. Most boxes have exterior rips and tears due to many years in storage. While some have distressed packaging, the light bulbs are secure in the boxes and undamaged.