Frequently Asked Questions What is the lifespan of my Philips InfraCare light bulb? The lifespan of a Philips InfraCare infrared light bulb is 500 hours. Find out what to do when it's time for a replacement. Contact us It is not possible to replace the infrared lamp yourself (except for HP3616). If the lamp is broken or defective, we advise you to take the device to your dealer or to a Philips service center.