We’ve tested five of the Philips LED 75w A19 daylight white light bulbs in our apartment dining room chandelier, and if they last as long as CREE predicts that we’ve used for several years now, they’ll pay for themselves at least ten times over by the time they reach end-of-life. We’ve run these five for sixteen hours each day for a couple weeks now. This Philips bulb has run throughout much of the day, with neither flicker nor failure, and cost us only $12 for a 2-pack at Home Depot. Not the cheapest LED bulbs we’ve found, but still affordable given their long service life.
These LED bulbs operate with SOME heating. But they don’t become nearly as hot as their 75 watt incandescent counterparts. They run even cooler than compact fluorescent lamps with similar brightness.
Plus, they operate silently, with neither buzzing, humming, hissing, nor whistling. On radios, they’re also quite quiet; generating no detectable RF or EM interference on those most susceptible AM frequencies.
Further, the common A19 form factor allows them to fit in virtually any light fixture that could support a standard incandescent bulb. The Philips A19 bulb format resembles the traditional Edison-style incandescent bulb in size and shape. This bulb also about mirrors an incandescent in its low weight. Gone are those heavy metal heat sinks at the base of many older LED light bulbs, that not only contributed to a significantly heavier unit, but also raised the transport costs of the bulbs, due to the extra weight. These Philips units are quite light. So, they’re cheaper to ship, and this, among other factors, results in inexpensive, state-of-the-art lighting for the consumer. Way to go, Philips! Philips has made these LED bulbs significantly more affordable than the CREE models of past years that we’ve sampled; currently about half the price per bulb.
Benefits, Features, Advantages, and Pros
- Among the popular power size, 75w. These bulbs come in 75 watt incandescent equivalent output. Note that this rating IS NOT the amount of power that this LED bulb actually draws. Rather, it expresses the amount of incandescent lamp light output that you get with this bulb. At 1000 lumens light output, this Philips LED bulb, though producing 75 watts of equivalent incandescent light, actually only draws 9.5 watts. So, this bulb is much cheaper to operate than similar 75 watt incandescents.
- Frosted exterior. Softens shadows and helps spread the light more evenly. The bulb itself lights very uniformly; no dark or bright spots on the lighted globe surface.
- Omnidirectional. The radiation characteristics is very much like traditional incandescent lighting. These LED lamps spread light around in nearly equal amounts in all directions except for directly underneath the bulb, toward the socket.
- Way more light per watt than incandescent bulbs. For this 9.5-watt LED bulb (1000 lumens), you get a good bit more light that what you’d see from a 75-watt incandescent light bulb (700 lumens). Yet you only pay for 9.5 watts draw!
- Cooler operation. With so much more of the consumed power going into actually producing useful light, and less to wasteful heat, LED bulbs radiate far less heat. These solid state bulbs can be up to 83 percent more efficient than incandescent bulbs.
- Longer life. At a suggested rating of approximately 11,000 hours average life expectancy, then if operated for three hours each day, their projected useable lifespan is 10 years.
- No external heat sink. Less metal in these units, owing to the greater efficiency electronics and LEDs themselves. This also makes handling them while hot much safer. No surface on this Philips LED bulb ever gets so hot as to produce burns.
- Durable construction. Stands up well to shocks and drops.
- No warm-up time. You get full brightness almost instantly upon LED turn-on. Instant on, Instant off.
- Suitable for damp locations. Humidity will not destroy these bulbs. However, we suggest not getting them wet. Avoid direct rain exposure.
- Near flicker-free light. We detect no perceptible flickers, no matter the ambient room temperature. There are reduced brightness fluctuations noticed from things like air conditioners starting up. The light output here remains constant through a wide range of input voltages.
- Full brightness, even in the cold. Like incandescent lighting, but not like compact fluorescent lamps, Philips LED bulbs operate efficiently even in very cold temperatures. You get full luminosity even when the area being lit is freezing cold all the way down to -4 degrees Fahrenheit.
- Less light output degradation over time. As incandescent and CFL bulbs accrue more hours of operation, the internal filament evaporates over that time, and the metal deposits itself on the inside of their glass envelopes. So, by the time the bulb burns out, its light output has significantly decreased due to the darkened glass that results from these metal deposits. However, Philips LEDs do not exhibit this source of light output reduction. They retain virtually all of their new-state brightness, even when they’ve neared end of life.
- Decent color rendition index (CRI). They offer a CRI of 80. So, particularly the “daylight” models serve as acceptable photography lighting.
- Less dust accumulation. With the lower heat output of LEDs, these bulbs attract less dust and dirt, the fine dust particles that do accumulate, do not stick as much to these, as they did on incandescent bulbs.
- No detectable radio interference. We can find no carrier waves from these bulbs on the AM radio or other medium- and long-wave radio bands.
- Affordable, though not the cheapest bulbs around. Though Philips LED bulbs usually pay for themselves many times over throughout their entire lives, their initial cost of about $6 per bulb, makes the initial investment in them slightly greater than that of compact fluorescent lamps. Prices have fallen, and as LEDs become more mainstream, we expect Philips prices to fall more. Gone are the higher single-unit prices.
- Three year warranty. This is shorter than the Ecosmart™ brand, which offers a ten year warranty. But still…, pretty good.
Disadvantages, Cons, Problems, Limitations
- Slightly green tinted light. The color of this lamp light is definitely a bluish sort of white. But it has a hint of green or yellow-green light mixed in. Perhaps Philips was trying to simulate the light you see in the sky on a cloudy day, during the afternoon, when a bit of yellow sun is shining and reflecting off of the clouds. If that was the objective, they met it handily. However, we prefer more of the blue-sky color or the deep gray overcast day hue.
- Should be recycled. These bulbs, due to the electronics they contain, should be properly recycled. Dispose of these just as you would any other electronic device. Do not just throw them out in the regular trash.
- Heavier than “Edison” light bulbs. Due to the internal support electronics, these bulbs might weight a little more than a traditional incandescent bulb. However, with the minimal heat sinking, the Philips bulbs are not much heavier at all.
- Not Dimmable. This line of bulbs is not compatible with any light dimmers.
- A little more expensive than other bulbs we’ve seen lately.
We’re pleased that Philips has created a reasonably affordable yet highly energy efficient LED product. It’s now practical for the average consumer to realize big savings on his electric bill, without spending so much initially to do it. With the three year warranty, sub $6 price tag per unit, and shock-resistant construction, we’ve found this LED bulb highly durable.
Given that warranty, we fear little over accidental failure due to excessive vibration, drops, and shocks. These LED bulbs provide a decently full, natural-looking daylight in most situations. It’s wonderful to see LEDs finally reaching mainstream lighting markets (they sure took their time getting there). We’d therefore, rate the Philips LED 75w A19 Daylight White Light Bulb at 96 out of 100. Lower the price some more, Philips, and you’ll get a perfect score from us. Revolutionary product!
- CREE LED Bulb Review
- Ecosmart™ LED 60w A19 Daylight White Light Bulb Review
- GE Bright Stik™ LED Light Bulbs Review
- LED Light Bulb Picture Gallery
- Philips LED A19 100w Daylight Light Bulb Review
- 2017-02-13: Originally published.