Cree releasing 100W LED light bulb equivalent

[atbglenn]

@luvlites

@atbglenn

The 60 watt equivalent Philips is slightly brighter, 880 vs 800 lumens, uses slightly more electricity, 11 vs 9.5 watts. The biggest difference is the Philips dims much lower than the Cree. I bought 10 of the Philips 60 watters on sale at Home Depot for around $8.00 each. I Like them better than the Cree’s simply because they dim better with the Lutron dimmers I’m using…Check out this review on the Philips 60 watt LED bulb:

http://youtu.be/0I0YiXE-gtk

Thanks, that was a great video. Always wanted to take one of these apart. The same guy also did an interesting review of one of the Crees. http://www.youtube.com/watch?v=n6DDFRBrSas

I've been subscribed to his youtube channel for some time now. I love his videos. :)

[antonkochubey]

@texaspyro

All the LEDs are wired in series… too much rewiring to be practical for battery mods.

Ehh…
Hyperboost Driver

[luvlites]

@Bort

Your right, i reread the posts and mixed things up
I still think future LED prices will make long use per start will favour the CFL but i can’t predict future pricing, if you can then chime in.

I still will argue the LED favours CFL for few minutes per use, since your saying the cost difference is within one CFL bulb i will say that means one premature failure and your over optimistic CFL life means your not getting ahead by going CFL.

“Too often we enjoy the comfort of opinion without the discomfort of thought.”
– John F Kennedy

[luvlites]

@EldoEsq

Doesnt a 100 watt CFL at 26 watts for $2 make more sense? I CANNOT justify $100 for 5 lightbulbs!!! I will consider them when the price comes down to something a bit more reasonable…

Interesting question which motivated me to put some numbers to it with these facts & assumptions:

1) We’re buying the bulbs today because we don’t know future bulb prices or specifications.

2) We’ll analyze cumulative costs for two scenarios: Scenario #1 where each bulb is used continuously for 3 hours/day and Scenario #2 where they’re used intermittently for 30 minutes/day.

3) Cree 100 watt equivalents cost $21.79 each after taxes, use 18 watts, and will last their rated lifetime of 25,000 hours when used in Scenario #1.

4) GE Energy Smart CFL 100 watt equivalents cost $2.60 each after taxes, use 26 watts, and will last their rated lifetime of 8,000 hours when used in Scenario #1.

5) In Scenario #2, due to the on and off usage, CFLs will only last 1/6th of their rated lifetime (1,333 hrs) and LED bulb lifetime will be equally degraded or less so.

6) Electricity costs are from the U.S. Bureau of Labor Statistics for two cases and assumed to increase by 2% per year: east coast starts at 23.2 cents per kWh and the national average starts at 13.4 cents per kWh.

[Muto]

And I live on the East Coast.
Don’t know anyone paying 23 Cents per Kilo hour.
It may have spiked in Jan. to near those levels somewhere on the East Coast, But I do not have variable rate, so was unaffected.

Regardless, As LED’s come down in price I will upgrade them as needed. I got CFL 60 watt equivalents a couple years ago, 8 for $2.78.
Still have some in stock. Shoulda bought more, same old story.

Later,
Keith

[dchomak]

@Muto

And I live on the East Coast.
Don’t know anyone paying 23 Cents per Kilo hour.
It may have spiked in Jan. to near those levels somewhere on the East Coast, But I do not have variable rate, so was unaffected.

Regardless, As LED’s come down in price I will upgrade them as needed. I got CFL 60 watt equivalents a couple years ago, 8 for $2.78.
Still have some in stock. Shoulda bought more, same old story.

Later,
Keith

I should of bought LESS, same old story.

What everybody misses is that it is wrong to use that stated 23 year life span in their cost analysis of the LED bulbs. Those bulbs will NOT last 23 years, not necessarily because they burned out, but because there will be improvements made in the bulbs of the future that will render them OBSOLETE. Yesterday I replaced 6 LED bulbs that I had in exterior lamp posts. I bought them less than 1 year ago at COSTCO. I replaced them with the Crees’ that I just got at Home Depot. They emit more light towards the ground and the color is warmer. I will reuse those “older” bulbs someday, but my point is that it is bad economics to prorate the initial cost over 23 years. It will most probably NOT be recovered.

We pay about 9 cents per kwh for the generation electricity. There is another line item charge of about 9 cents per kwh, that is for delivery.

[leaftye]

I bet texaspyro will use many of his LED bulbs until they burn out because he really hates having to access some of them.

[Ejected_Filament]

Im assuming texaspyro has strip lighting?

@ToyKeeper

…

Or maybe MT-G2s would be better. I wonder how hard it’d be to make my own “puck” lights with a single MT-G2 on each. ….

I want in on this MTG2 madness… not the xpg though.

[texaspyro]

@leaftye

I bet texaspyro will use many of his LED bulbs until they burn out because he really hates having to access some of them.

I have my bulb stick… make changing most of them easy. The problem wass having to pull down a hundred or so bulbs to check their microscopic &*$#^@ date codes for a recall. The ones that I can’t get to are above a stairway and those under the second story eaves.

Frankly I don’t see the costs of LED bulbs coming down spectacularly any time soon… even if the emitters were free, there is a lot of other stuff in the bulbs and that is all mature technology/raw materials and that ain’t goin’ nowhere but up.

[Bort]

Your not going to get 6 years per bulb at 30 mins/day, try one or two years (still optimistic)

The graphs are very nice, i like visuals

[Bort]

@luvlites

@Bort

Your right, i reread the posts and mixed things up
I still think future LED prices will make long use per start will favour the CFL but i can’t predict future pricing, if you can then chime in.

I still will argue the LED favours CFL for few minutes per use, since your saying the cost difference is within one CFL bulb i will say that means one premature failure and your over optimistic CFL life means your not getting ahead by going CFL.

“Too often we enjoy the comfort of opinion without the discomfort of thought.”
– John F Kennedy

I can think of an entire political party that lives by that, someone once said you can hold any opinion you want if you don’t test it too thoroughly.

[ToyKeeper]

Why don’t we settle this which-bulb-is-better nonsense once and for all?

Stop using bulbs; use flashlights instead.

[ToyKeeper]

(but seriously, a 1xAA Zebralight gives me like a month worth of light per charge, and only costs about five or ten watt-hours to charge… compared to the kilowatt-hour I’d be spending for a month of light from a single bulb… a flashlight easily provides a 99% savings on the electric bill)

[leaftye]

@ToyKeeper

(but seriously, a 1xAA Zebralight gives me like a month worth of light per charge, and only costs about five or ten watt-hours to charge… compared to the kilowatt-hour I’d be spending for a month of light from a single bulb… a flashlight easily provides a 99% savings on the electric bill)

Charge it at work. 100% savings.

[ToyKeeper]

@leaftye

@ToyKeeper

a flashlight easily provides a 99% savings on the electric bill

Charge it at work. 100% savings.

… but I work at home.

…


Ooh, I know. Maybe I should go work at a coffee shop whenever I need to charge batteries. I could save, like a whole cent every few months! (and it’d only cost me a buck or two in gas each way, plus a few more for coffee)

[leaftye]

@ToyKeeper

@leaftye

@ToyKeeper

a flashlight easily provides a 99% savings on the electric bill

Charge it at work. 100% savings.

… but I work at home.

…

Ooh, I know. Maybe I should go work at a coffee shop whenever I need to charge batteries. I could save, like a whole cent every few months! (and it’d only cost me a buck or two in gas each way, plus a few more for coffee)

Easy solution. Get a bicycle, then you spend nothing on gas. Let me know if you need any other financial advice. I can help you make a small fortune if we start with a large fortune

[ri_chevy]

@ToyKeeper

(but seriously, a 1xAA Zebralight gives me like a month worth of light per charge, and only costs about five or ten watt-hours to charge… compared to the kilowatt-hour I’d be spending for a month of light from a single bulb… a flashlight easily provides a 99% savings on the electric bill)

Not much light output with that light though. You must live in a tent. LOL Just kidding.

I like the charge it at work for free post!

[ToyKeeper]

No, it’s not much light. But I only need about 3 lumens (maybe 10, with a floody beam) to see what I’m doing pretty clearly.

Even with 99% power reduction, it’d still take several years to save enough on electricity to pay for a decent flashlight. The difference between LED and CFL today seems pretty negligible in terms of operating cost, unless you have hundreds of bulbs running several hours per day. For most people, it seems like kind of a moot point.

I didn’t fill my home with LED bulbs to save money.

[koyotee]

Would anyone be willing to buy me one 60w and one 100w cree equivalent and ship it to Europe? And if it will work on 220V?

[texaspyro]

@koyotee

Would anyone be willing to buy me one 60w and one 100w cree equivalent and ship it to Europe?

I don’t think that they work on 220V volts…