I spotted these super-efficient spiral light bulbs at Sultan Center the other day. The reason they caught my attention was because their suppose to last 8 years. They do cost more (1.300KD each) but you should, however, save more money in the long-term. They are also energy saving running on just 20 watts. The spiral light bulbs come in two color temperatures: warm white (2700K) and cool daylight (6500K). Lets just see how many years they really last.