LIMITED WARRANTY: Philips warrants that this bulb will be free from defects in material and workmanship and will operate for 3 years based on up to 3 hours average usage per day/7 days per week when used as directed. If this bulb does not conform to the warranty, Philips will send you, at its election, a replacement bulb or refund your original purchase price upon receipt of the returned bulb, register receipt and proof of purchase. For any questions, concerns, or to learn how to return the bulb, please call 1-800-555-0050, write to Philips at Philips Lighting North America, 200 Franklin Square Drive, Somerset NJ 08873. Or, send an email through our contact form [http://www.usa.lighting.philips.com/support/connect/contact-us/contact-us]. This limited warranty does not cover bulbs subject to accident, neglect, abuse, misuse or acts of God. REPLACEMENT OR REFUND IS YOUR SOLE REMEDY. EXCEPT TO THE EXTENT PROHIBITED BY APPLICABLE LAW, ANY IMPLIED WARRANTIES ARE LIMITED IN DURATION TO THE DURATION OF THIS WARRANTY. LIABILITY FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES IS HEREBY EXPRESSLY EXCLUDED. Some states do not allow the exclusion of incidental or consequential damages, so the above limitation or exclusion may not apply to you. This warranty gives you specific legal rights, and you may also have other rights which vary from state to state.