Las Vegas at night with the Luxor Hotel at the center of the picture. The shaft of light rising from the top of the Luxor is created by 39 individual Xenon lamps and each lamp costs about $1,200 and will last 2,000 hours. The combined output is estimated at 40 billion candlepower. Each lamp is 7,000 watts. That's a little more than one billion candlepower per lamp.