This is a $10 rebate from Philip which make the LED bulbs more affordable.
Rebate Link:
Amazon link for Philips LED bulbs: There are many to choose.
From the Manufacturer
Elegant, energy saving LED made simple. Philips AmbientLED™ PAR30L Indoor Flood brings innovation into familiar applications. Longer life means energy savings year after year. Utilizes new, advanced LED technology. Ideal for recessed and track lighting.