# 61,320 hours and counting

**URL:** <https://boards.straightdope.com/t/61-320-hours-and-counting/916184>\
**Category:** Miscellaneous and Personal Stuff I Must Share\
**Created:** [July 24, 2020, 4:30am UTC](https://boards.straightdope.com/t/61-320-hours-and-counting/916184 "2020-07-24T04:30:57Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![beowulff](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/beowulff/32/542_2.png) [@beowulff](https://boards.straightdope.com/u/beowulff)\
**Post date:** [July 24, 2020, 4:30am UTC](https://boards.straightdope.com/t/61-320-hours-and-counting/916184/1 "2020-07-24T04:30:57Z")

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OK, it’s probably not quite that much, but it’s close. I write the date that all my LED bulbs are installed on the base of the bulb, and save the receipt, so that I can get a replacement for any that fail prematurely. I have one that is on pretty much 24/7/365, and it’s been in service for 7 years now. It’s a Cree, and was worth every penny I paid for it. I figure that it has saved me close to $500 in electricity over that time, and another $30-$50 in replacement bulbs.

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**Author:** ![Dr.Strangelove](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/dr.strangelove/32/6613_2.png) [@Dr.Strangelove](https://boards.straightdope.com/u/Dr.Strangelove)\
**Post date:** [July 24, 2020, 4:58am UTC](https://boards.straightdope.com/t/61-320-hours-and-counting/916184/2 "2020-07-24T04:58:49Z")

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I bought some of the very first Philips LED bulbs about 10 years ago. They were expensive–about $40 each. But I did the math and realized they would pay for themselves in under a year (8 hrs/day \* 60 W \* 365 days/yr \* 0.001 kWh/Wh \* $0.30/kWh = $52/yr). They’ve been extremely reliable (no failures over 10 years) and give good light quality.

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**Author:** ![Beckdawrek](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/beckdawrek/32/3647_2.png) [@Beckdawrek](https://boards.straightdope.com/u/Beckdawrek)\
**Post date:** [July 24, 2020, 8:22am UTC](https://boards.straightdope.com/t/61-320-hours-and-counting/916184/3 "2020-07-24T08:22:29Z")

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I have had an OTT light in my Art room for about 12 years. They’re not usually that long lived. I use it everyday. On and off. Which I believe is harder on the bulbs.