Light Source Color: Blacklight Type: Glow starter (glow lamp/glow ball) Shape: Bulb type It's old, but it works perfectly. It was at my parents' house, so I don't know how long I've had it, but it works. The sphere is about 15 centimeters. There is dirt on the inner bottom of the sphere. Please refrain from purchasing if you are extremely concerned about the condition. Please also check my profile.