Romantic LED Flickering Simulation Flame Light Bulbs 3 Modes and Gyro Sensor,1500K True Fire Color,700 Lumens. I got this light bulb. It has a large base with threads like a normal bulb. It has several modes if you turn the switch off and back on. It does look like fire and even scared my wife that iy was starting on fire. I think it works better in a vertical position as horizontally it gives off more light toward the base. A neat mood light when all the other lights are out. It really does flicker nicely.