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.
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22.8 years means rated average life based on engineering testing and probability analysis where the lamp is used on average 3 hours/day, 7 days a week.
At $.11 per kWh, this 17W, 4000 Candela(candlepower) LED PAR38 uses $46.75 of electricity over its 25,000 hour life. This is a $200.75 savings when compared to the $247.50 required to run a 90W, 3697 Candela halogen PAR38 over the same period. Actual savings will vary depending on cost per kWh.