ALIDE G9 Led Bulb Dimmable 3W Replace 20W 25W 30W Halogen,2700K Warm White

First, they aren't 2700K. They fall into the 3000K+ range a bit. However, they dim in both variable dimmer circuits and High/Low lighting appliances (High/Low is achieved by the use of a diode on the low toggle, which effectively provides half of the A/C waveform. That's called half-wave rectification, and from a 120V A/C source, you get 60 volts every other cycle to the bulb). That last bit is what causes "flicker" in other LEDs you'll find. These do have a nearly imperceptible flicker, which means the manufacturer took additional precautions to add sufficient capacitance to make up for the drop every cycle. The result is a "Low" that is not really half as bright as the "High" but does produce a dimmer light. So, for example, if you have a microwave oven light that's one of those High/Low toggles, this will be perfect for that application. Many under counter fixtures use the High/Low toggle as well, and these will work well in them (again, don't expect half the light). You probably won't notice the very, very slight flickering (again, nearly imperceptible). If you have an in-line dimmer, these really do a fantastic job of full-spectrum dimming. These DO NOT "warm" as they dim. They weren't advertised to, either; but it's a common expectation with bulbs that are being dimmed. There are LED products that produce a warmer glow as they are dimmed. Philips puts out some, for example. I hope this helps clarify not only how the dimming is accomplished in High/Low applications, but also gives a big thumbs-up for these (they're a bit pricey, compared to their peers, but are worth the extra bit).

Have been using them for about a month now and so far, so good. Dimming works well and bulbs have a nice warm glow that match my gold accents in the room. As long as they last and keep working, 5* rating.

I ordered these LED bulbs to replace 15 halogen bulbs in a chandelier with a dimmer switch. At full power, the old halogen and new LED bulbs were nearly identical through the frosted bulb covers. When dimmed, the LED bulbs were whiter, but it really didn't matter since they still looked great and I was replacing all halogen bulbs. The old halogen bulbs were only rated for 2000 hours, which is far less than these LED bulbs. Dimming worked exactly as expected. They've been in use for a couple of weeks, no failed bulbs, energy consumption is down, and we shouldn't have to replace another bulb for years. All the halogen bulbs were replaced with LED for about the price of five halogens. Note the bulb dimensions, they're slightly taller than a typical halogen, but it didn't matter for my application. I'd absolutely order them again.

Definitely should have a dimmer !

These 3w bulbs were a drop in replacement for my G9 Halogen 25w Bulbs on a light fixture above my bathroom mirror. The halogens are just a hair warmer color temperature than the Soft Warm White LED bulbs but hardly noticeable without a side by side comparison. But what doesn't need a side by side is the HEAT SAVINGS these new LED bulbs provide. My G9 Halogen bulbs were running over 350°f and climbing during use, and I had 8 of them. That is a lot of heat. These LED G9 bulbs were only show 85° when the Halogens were 350°. I went ahead and bought the matching Frosted covers that go over these Bulbs in the Fixture. The new frosted covers are just slightly longer than the covers they were replacing which matches nicely with the slightly longer bulb. I cant' say nice of stuff express how easy and satisfying this purchase was to install and enjoy.