Megaman’s energy saving AR111 light bulbs are designed to replace one of the most popular, and most inefficient, bulbs on the market. Ideally suited for use in retail, display lighting and other commercial applications, the Megaman AR111energy saving light bulb features unique 15,000 hour Ingenium technology and will reduce your energy bill. You can choose from GU10 or Part L compliant GX53 light bulbs.