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kb0nes

kb0nes

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Stopped by Home Depot last night and saw this deal. These are 3rd gen Philips 60 watt eq lamps. 830 lumens 11 watts (75 lm/w efficacy) 2700K color temp (Incandescent color) and they are dimmable with standard dimmers.

The Cree 60w is still a great deal for $13 (also HD) but for $8 these are a steal. I resisted the urge to grab an armload but only because I have all I need!

kb0nes++12-19-2013-10-47-15.jpg
 
What is the colour rendering index on those lamps?
I'm quite sceptical on led lighting... just recently accepted compact fluorescents.
Halogen is the way to go for me, like real daylight but... what a cost! :S
 
Rich,

I believe you are confusing CRI (Color Rendering Index) for Color Temperature. They are different, here is a great link for anyone that is interested:

http://lowel.com/edu/color_temperature_and_rendering_demystified.html

Cree does offer two different color temperatures in the 60w eq version, both Soft White 2700K and Daylight 5000K. CRI is listed at 80 for all the Cree "A" style bulbs. To my eye the Daylight is a bit blue and the Soft White is very "incandescent like", slightly too warm. Nice to have the choice though. Here is their spec sheet

http://www.creebulb.com/Content/downloads/product_info/75w60w40w_StandardBulb_DataSheet.pdf

They just released a 13.5w / 75w eq offering I haven't seen in person yet. At 81 lumen/watt efficacy that is a great deal for 2700K![this post was last edited: 12/19/2013-13:10]
 
I've got enough CFL's stocked up to last for years although I wouldn't mind a couple of those for the ceiling light in the tv room so I can dim them. It wouldn't be cost effective to change many out from the current CFL's. I get the CFL's in a 6 pack (60 watt equiv) for $1.99 at Meijer
 
Gabriele,

CRI of most LED offerings today is in the 75-90 range, so they don't quite meet Halogen in that regard. I'd say they are every bit as good as the CFL's though. I would bet that if you tried an LED or two you will never consider another CFL again. I chucked all my CFL's about 2 years ago. Even though the florescents have got much better, they still have warmup issues, most aren't dimmable, have durability problems (especially when frequently cycles) and create RFI I hear on the radio. LED's have answered all those issues.

I do agree that Halogen creates wonderful light, but they are just too power hungry. At best a Halogen lamp is about 1/3rd the efficiency of an LED. The other day a buddy who is a camera man for a local news channel showed me his new on camera light. Its a focusable LED lamp that replaced the old Halogen. It looks better, has way more output and it can run for hours without denting the battery! He doesn't miss the Halogen.
 
I'm more than ready to switch to LEDs but cost is an issue. Once the price drops another 50% I will start buying them more often. I have a few and like them much better than cfls.
 
Domestic LED lamps with a CRI of 90? I must be dreaming... the best I found was in the 80-82 range with poor red rendition! (You must value the colours separately to have something even vaguely meaningful).
Anyway, I really like my CFL, got all of them on the "quick start" variety and they switch on within a couple of seconds at 70% luminous flux and from there full brightness is achieved in 20 seconds or so. Desk lamps, bed side, bathrooms and hall all have hi-efficency halogens.

Out of nostalgia I keep a 25W tungsten light bulb in a 50s stainless-steel desk lamp, when it burns out it'll be a pain to find a suitable substitute as the space is very tight even for "compact" low powered CFL and LED lamps.

At my father's we put hi-cri fluorescent tubes (in a commercial laundry you really need good lighting) with a CRI of 98. When on at full power you can hardly notice the difference with real daylight!

But the thing that outrages me the most is that ALL the old lamps I had were proudly "MADE IN ITALY" or at worst France or Germany. Now the best I can expect is Poland otherwise there's China... even the "classic" fluorescent tubes, that used to be made here all come from east, I'm sick.
 
YAY for LED's

I just cannot stand the CFL's. I have friends that use them in their dining room chandelier. Just awful.

LED's are definitely the way to go.

Malcolm
 
My building just installed an LED driveway light to replace a faulty (and ugly ugly ugly) sodium vapor light. I'm waiting for comments from the troops.
 
I'm more than ready to switch to LEDs but cost is an iss

Matt,

I agree initial cost is slightly higher, although it has dropped a TON in the past 2 years. But the cost of the LED's is FAR less if you factor in energy cost.

If you have a 60 watt incandescent bulb you run currently for 4 hours a day and you pay $.11/kwh, the LED lamp I mentioned at the start of this thread is PAYED FOR in only ONE year! And you will get years more use and no required service/replacement costs to boot.

I don't see LED technology ever falling far under the pricing we see today, although I expect efficiency and aesthetic aspects to improve. Consumer Reports a while back stated that LED lamps costing less then $50 will easily payback in their life. For me the tipping point was the $15 for a 60w eq lamp.

I just bought one of the brand new 100w eq. Philips bulbs last night, Payed $32 for it. There are predictions that over its life it will save better then $200. Maybe it will or maybe like much in sales it will fall short of marketing promises. Still it will pay for itself and then some I am sure.
 
Davey, let us know what they think. I'm guessing it will be mostly positive. I can't see for anything in sodium vapor light and it washes out all other colors.
 
Big Savings ?

That's all if you're replacing incandescent bulbs with LED. You won't garner any where near those savings if at all for years and years and years by replacing a CFL with an LED.
 
Pete, I agree CFL's are darned close to LED's in the efficiency department. If you have CFL's and you like them its folly to replace them before they fail!

I replaced the CFL's because I don't like them and their issues.

As an interesting aside I used to manage a large pool room that had incandescent lights over all the tables ~220 lamps in all. Almost 17,000 watts total! The switch was made to CFL's and roughly $5000 was saved yearly. The power company rebates payed for the lamps initially. The downside was all the CFL's tend to fail early as they are cycled frequently (every time a table was rented). Now they use CFL's and leave them on all day so the durability issues aren't as pronounced.
 
home LED lighting

about 55%of my lights are LED from these 4 mfg so far:
-lights of America
-GE
-LG
-3M
I mostly use the LEDs in aplications that are on for long periods of time or the cooler running is a benefit.I find the LED bulbs weight puts some lamps off balance and they also are unsuited to some enclosed fixtures(as are CFLs)because of heat buildup could damage them or affect operation.I still use incandescent where heat given off is a benefit,low usage,certain lamps and fixtures-some I run incandescent in winter/swap to LED for summer-bathroom for example.
 
Does Anyone Make What I Need?

My whole house is on CFLs, with which I'm happy until they burn out, then I can go to LEDs, no problem. EXCEPT -

In my bathroom, over the medicine cabinet, there are two light fixtures with ruffled glass shades; they were designed to use a 40W standard-base candle bulb.

Try as I may, I can't find an LED equivalent for them, and I refuse to use CFLs in these fixtures, because the bulbs are visible, and CFLs look like radioactive bee butts when they're sticking out of a fixture.

Anyone know of an LED bulb meeting these requirements?
 
The problem I have with some of these high-tech bulbs is their hit-or-miss life span. If they fail early, then you have to deal with the warranty. The store won't do a return after their return period ends, which means contacting the manufacturer.

I remember an expensive CFL (styled and sized to replace a halogen recessed can light bulb) that failed early, and the manufacturer wanted me to pay shipping to return it, PLUS a $10 processing fee, which was only slightly less than what I'd paid for it in the first place.

What the warranty experience is like with an LED bulb is something I haven't yet experienced. I know I'd be honked off if I paid $50 for a bulb, it failed early, and the manufacturer wanted me to pay for the shipping plus a $50 "processing" fee.
 
LED reliability

All the LED lamps I have bought over the last ~3yrs have been totally reliable-did have trouble with some early Chinese made(Ca.2009)"lights of America"floodlight LEDs:this had groups of standard discrete "t 1 3/4 diodes in series strings and some would short and upset the voltage balance,blowing more until whole sections were out or flickering...Later LOA lights,~2010 on,are"assembled in USA"and have been 100%reliable,i have had an outdoor one on for about 3yrs straight now.
 

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