Bests & Worsts Reviews from Amazon

The most unusual feature of this Philips 433227 10.5-watt Slim Style LED Bulb is that it does not resemble a traditional A19 light bulb. Instead, this LED 'bulb' is flat and shaped more like a lollipop. The body is made of thick, translucent plastic that feels quite rugged. I have not done any 'drop test' with this bulb, but I'm sure it can survive a short fall without cracking. Another important feature is that: this Slim Style bulb is significantly lighter than other 60W-equivalent LED bulbs I have tested (although it is still heavier than an incandescent bulb). That means I can use it in any hanging light fixture or goose-neck lamp, for examples, without worrying too much about its added weight. The actual light source of this product consists of 26 tiny LEDs, placed around the fringe of the lollipop. At first I was skeptical that this arrangement can give out uniform illumination all round. But in actual application (when placed behind lamp shade, for example) the light it produces is close to omni-directional. Its color temperature is 2700K, same as that of most incandescent bulbs. Basically if you don't look at this LED bulb, you can't tell the difference between its light and that of a 60W A19 incandescent bulb. The power consumption is 11W according to my P4460 Kill A Watt Electricity Usage Monitor. Its power factor is PF=0.88 which is not bad, but below that of other Philips LED bulbs I have tested (for example, the Philips 429381 10.5-watt A19 LED Bulb measures 10W with PF=1.0), This gives me the impression that Philips may have designed the PFC (power factor correction) circuit to a lower standard in order to keep the cost down. The only problem I have with this Philips bulb is that: it does not work well with traditional TRIAC dimmers designed for incandescent bulbs. The bulb emits a 120Hz buzzing sound, whether the dimmer is at minimum or maximum power. Thankfully, the noise is not as LOUD as that from the Cree 9.5-Watt Warm White Dimmable LED Light Bulb, but it is still easily noticeable in a quiet room. On the other hand, when used in an ordinary (non-dimmer controlled) light fixture, the Philips bulb is completely silent. Even if noise is not a critical issue, the dimming range of this 'dimmable' bulb is too limited when compared to incandescent or other dimmable LED bulbs. With dimmer at minimum power, the Philips Slim Style still retains about 25% of its full brightness. In contrast, the Philips 432732 11W A19 LED Light Bulb is able to dim all the way down to a faint glow. See the comparison pictures I uploaded to 'Customer Images' section, and you'll notice the big difference. Bottom Line: Considering its low cost and innovative design, this Philips Slim Style LED 'bulb' is an excellent replacement for 60W incandescent bulbs. Unfortunately, I have to deduct one star from my rating because the product is prominently advertised as 'dimmable', but performs poorly when used in a dimmer-controlled light fixture. Remark: On the package it says: "Not suitable for totally enclosed fixtures". The keyword here is "totally". I won't get too worried about using it in my enclosed ceiling lights. As long as the fixture is not air-tight, it should be fine. [Update on May 29, 2014] Just tried using the Philips SlimStyle bulb in my garage door opener and it works fine. Previously I tried the Cree 9.5-Watt LED Light Bulb, but the EMI (electromagnetic interference) from that bulb is so strong that it jams the remote's radio frequency. So once I opened the garage door and the LED bulb comes on, I can no longer close the door using the remote. None of those LED bulbs carry the 'FCC' logo on them.