Brightness: 650 Lumens Estimated yearly energy cost $1.08 (Based on 3 hrs/day, 11/kWh. Costs depend on rates and use) Life: 22.8 years (based on 3 hours per day) Light Appearance: 2700K (soft white) Energy Used: 9.5-Watts (equivalent to a 65 Watt standard incandescent light bulb) Lumens per Watt: 72.22 Uses 85% less energy compared to a standard incandescent light bulb Ideal for residential use in kitchens, living rooms and dining rooms and commercial use in offices and retail spaces Contains Mercury: No
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Senior Member - 1K
posted: Jul. 20, 2014 @ 1:41a
Wow a payback period in only 10 years, probably more like 14 years taking into account the net present value of the out year savings,
Only reason to make the change at the present time is if you like the color output of the LED bulbs (much whiter) pr you a dedicated greenie. My gut feeling that after taking into account the start-up costs anf facilities for the LED line of bulbs, this cangeoveris probably more energy intensive than using incandescent bulbs just like using ethanol in gbasoline drives up overall energy usage, Greenies and tree huggers feel better when US citizens sacrafice to make the 'world' more energy efficient although our brethren in Asia, Africa and South Americas couldn't care less and their usage dwaefs any 'savings' we could theoretical obtain.
duhmel said: Wow a payback period in only 10 years, probably more like 14 years taking into account the net present value of the out year savings,
How do you figure that?
Here's what I figure: if 9.5 watts costs $1.08/yr then 65 watts costs $6.84/yr for a net savings of $5.76/yr These are priced at $10 so they pay for themselves in less than 2 years, and that calculation assumes incandescents are free.
May also want to check your local Costco. I found dimmable 65w equivalent 2-packs for $9.99. That's only a buck or so more than normal bulbs at HD/Lowes. This included a $10 instant rebate from the local electric company, so I bought my limit (5 2-packs). May go back this week and get enough for the whole house.
valkyrie said: May also want to check your local Costco. I found dimmable 65w equivalent 2-packs for $9.99. That's only a buck or so more than normal bulbs at HD/Lowes. This included a $10 instant rebate from the local electric company, so I bought my limit (5 2-packs). May go back this week and get enough for the whole house. I hope they're not made by FEIT, like a lot of Costco bulbs. Known for short life, weird colors, and sub-standard light output regardless of stated claims. Philips is at least a top-quality product.
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