What are krypton light bulbs?

According to Chemicool, krypton light bulbs are highly reliable, long-lived, energy-saving light bulbs that burn at high power and produce a brilliant white light. Krypton is often used in applications that require very bright lighting, such as airport runways.

Additionally, krypton is often used in recreational club lighting, such as neon signs and strip lighting. This is because of its luminous qualities and green-yellow coloration that occurs under the right conditions, when combined with other gases used in the lighting industry. Finally, krypton is found in most types of energy-saving incandescent or fluorescent lighting, since it is used as a gas filler.