The lamp post is a full 6" in height and comes with an inter-changable screw base flame tip bulb. The lantern style is designed to match the smaller lantern style landscape lights. This lamp is now available with an LED bulb. The LED comes either warm white or cool white or flickering and draws less than 5ma. of current. The flame tip incandescent bulb draws 40ma. With an LED the life of the bulb is extended to over 65,000 hours of use. As with any LED, it requires a DC power supply and will have polarity. If when you plug this lamp into a 12 volt DC power source it does not light, simply unplug the cord, turn it around, and plug it back in.