Philips AmbientLED light bulbs are the smart alternative to standard incandescent bulbs. They deliver exceptionally long life, significant energy savings, beautiful light, rugged construction and contain no mercury.
* 15 years means rated average life based on engineering testing and probability analysis where the lamp is used on average 4 hours/day, 7 days a week. * At $.12 per kWh, this 4W, 550 Candela (candlepower), LED bulb uses $12 of electricity over its 25,000 hour life. This is a $48 savings when compared to the $60 required to run a 20W, 550 Candela, halogen flood bulb over the same period. Actual savings will vary depending on cost per kWh.