Which LED Bulbs are Greatest For Built-in Dimmers? > 자유게시판

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Residing in a house full of dimmer switches can make the lighting aisle seem more intimidating than it must be. Positive, loads of in the present day's LEDs are designed with dimmability in thoughts, however that does not assure satisfactory efficiency. We've heard plenty of complaints from readers, EcoLight and likewise experienced first hand the annoyance of spending cash on upgraded lighting, only to discover that these fancy new bulbs can buzz, flicker, and dim erratically. Within the interest of constructing your subsequent journey to the lighting aisle a little less exasperating, we put today's LEDs to the check. There are many things that can cause a light bulb to buzz or flicker when it dims, together with things beyond the bulb's control like voltage irregularities, overloaded circuits, and outside interference. The most typical concern, though, lies with the dimmer itself, and that's the place we determined to start. Trendy dimmers (the kinds you may find on the shelf at Lowe's or Home Depot) won't actually raise and lower the voltage for smooth dimming, however will as an alternative flash the power up and down at unnoticeably excessive speeds to create the illusion of dimming.

These fast-hearth swings in voltage create electromagnetic resistance within the bulb, which may cause issues to vibrate and buzz. You don't want that. We began with a simple rig using a number of frequent dimmer switches. We chose an LED-appropriate mannequin from Lutron, an analogous Leviton switch, and an affordable, $5 triac rotary dial meant for incandescents solely. Though we aimed for a great illustration of what's on the market, there are clearly greater than three kinds of dimmer switches on the market. As such, EcoLight your mileage may fluctuate -- especially if you're using an older mannequin, or something extra high finish. Curiously sufficient, each and every LED that we examined dimmed with all three dimmers, even the one rated just for incandescent use. That lends numerous credence to manufacturer claims of broad dimmer compatibility -- however it is solely the start of the story. As you'll see, dimmable LEDs aren't all created equal. Dimming annoyances aren't a brand new downside -- and they are not a problem that's distinctive to LEDs, either.

The tungsten filaments in most incandescent bulbs are notably prone to the excitement-producing vibration caused by in-wall dimmers. Certain sufficient, the 60-watt incandescents that we examined out in our rig put out a noticeable buzz throughout all three switches. Even without filaments, LEDs have loads of components that may vibrate and produce that annoying buzz, and most of the ones we tested did just that, even well-rated bulbs like the Cree 60-watt replacement LED and the GE Reveal LED. We rated each bulb's buzz on every dimmer utilizing a 5-level scale -- very quiet, quiet, reasonable, EcoLight reviews loud, and really loud. The consequence you need is a bulb that rates "very quiet" throughout the board, as even a "quiet" buzz can get annoying in a quiet room. For probably the most part, the buzzing in the LEDs we tested fell someplace within the middle: pretty moderate, however definitely loud sufficient to be a respectable trouble. There were two standouts, though -- one good, and one not so good.

Apparently enough, they both came from Philips. The overachiever was the current technology of the company's commonplace 60-watt substitute LED, which ran darn near silent throughout all three dimmers. We could not even hear anything when we dimmed it using a budget, incandescent-solely dimmer. Bookending the opposite end of the spectrum was the Philips SlimStyle LED, which produced the loudest buzz of any bulb we examined. This is sensible when you think about that in trials like these, buzz is absolutely only a product of a bulb's design. With a radically completely different form from the usual, near-silent Philips LED, together with a reorganization of the diodes themselves, it is not terribly shocking that the SlimStyle's buzz is so much louder. All that said, it is price reiterating that we did not notice an audible buzz with any of those bulbs when utilizing them with commonplace wall switches, so if you don't use dimmers in your house, then an inexpensive LED just like the Philips SlimStyle may make plenty of sense.