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Product Name: | EcoSmart 60-Watt Equivalent A19 Dimmable ENERGY STAR LED Light Bulb in Soft White (8-Pack) |
Product Description: | Brighten your room with the energy efficient EcoSmart LED light bulb. This EcoSmart A19 light bulb's estimated energy cost is $1.14 per year and saves an estimated $83 over the course of each bulb's lifetime, which is 15,000-hours. This EcoSmart A19 Lamp is Dimmable as well as Omni-Directional. This EcoSmart 9.5-Watt 2700K (Soft White) LED A19 provides a comfortable light, perfect for your living room, bedroom, kitchen or any place in your home where you would use a standard incandescent light bulb. |
Product SKU: | 314464234_314464234 |
UPC: | 192968200384 |
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Very happy with the purchase. Just bringing a personal positive perspective to balance the negative comments
I can walk into the dollar store any day and pick up bulbs cheaper....
CA?
Getting bulbs in its almost like Checkpoint Charlie - they gotta save electricity, they gotta meet CRI minimums, they got to have certain spectral responses, etc. It's almost like CA is trying to drive the bulb makers nuts coming up with new, crazier specs every couple of years....
Yet None of them deal with the actual recyclability of these LED toxic dump bulbs?!
Weird.
Anyways, for those with PWM flickering sensitivity (headaches, eyestrain, etc), https://ledstrain.org , the Phillips led bulbs labeled EYECOMFORT are the only ones I've tested that reliably deliver a non-flickering light across the range (up to 1/1000th second for the 40 to 75w, 1/500th for 100w.).
You can test by manually setting video mode to use a shutter speed of 1/500th to 1/1000th with a low enough iso not to wash out the image when pointing the camera at the lit bulb.
Wal-Mart, Reveal, etc - some bulbs are flicker-free, most are not.
This flickering due to pwm is at 100% brightness and not related to dimmer flickering. Any bulb can have 1 or the other problem, both, or neither.
..
For those that want a high cri,
Phillips Ultra Definition bulbs have a cri 95 rating.
For those that want to save 50%~ more electricity, the very latest Phillips Ultra Efficient bulbs (e.g. 4.5w 60w vs 8.8w normally).
Both at Wal-Mart.
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And in this case the CRI improvement was clearly something Philips did to meet the higher California standard when you consider the comparable foreign market models on which the Ultra Efficient LED lamps were developed: Philips' European Ultra Efficient model and even their earlier 'Dubai' lamp which pioneered >200 lumens per watt retail LED lamps are both 'only' 80 CRI sources.
The downside is that tweaking the CRI up did diminish some of the efficiency (there's no such thing as a free lunch), so while the foreign models achieve slightly greater than 200 lumens per watt, the U.S. models are slightly below 200 lumens per watt. However, these values are all significant since this range (approx. 200 lumens/watt) is near the peak efficacy to be expected from "white" light sources using current technology [dial.de]. (And there's even a case to be made that this would be the limit of any ideal true white light source, as in a full spectrum source akin to the sun: check this out if you want to go deep! [ucsd.edu])
Of course, the current price of those Wal-Mart exclusive Ultra Efficient models - as much as $10 for a single 60W equivalent(!) - will surely limit their appeal to enthusiasts willing to pay a premium for the most light from the fewest watts and/or those simply hoping to get a lamp with the longest service life possible. That last item is another noteworthy side-benefit of the optimization for efficiency: a potentially extended service life! The Philips Ultra Efficient models are (for now) claiming a 50,000 hour service life.
Clearly I have a lot of enthusiasm for the new lamp, even if the price means I'm personally unlikely to buy one anytime soon.
Good luck!
Jon