Philips Advance ICN-2S28-N Centium Electronic Ballast， 120/277V， F28T5， 2 Lamp<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Centium Programmed Start Electronic Ballast</li><li>IntelliVolt 120V to 277V 50/60Hz</li><li>High Power Factor</li><li>Type 1 Outdoor Inherent Thermal Protection</li><li>Only use with Rapid_Start sockets</li></ul></div><img src="http://ecx.images-amazon.com/images/I/51Wa%2Bo7WcVL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51sWsbIJvhL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51A7VytqTXL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51LDzOj3bBL.jpg" noproxy>