MR16 LEDs for Landscape Lights

In a quest to become even more energy efficient, I am looking at replacing the 20W halogens in our landscape lights with MR16 LEDs. While the LEDs are incredibly expensive compared with halogens, payback through energy savings should be achievable in several years. Searching the web I found relatively little information regarding how well these units actually work in real applications. So, I thought I would see if anyone here would have some comments.

I have several concerns. First, it appears that output and life are negatively impacted by temperature. Since these outdoor fixtures are pretty much sealed except for a drain hole, conduction cooling for the higher wattage LEDs will be a problem. That caused me to rule out several of the higher output units. The design of the fixture requires a wide-angle lamp. One of the best candidates so far is this one:

I have also been looking at the kind that have 36 to 48 individual LEDs. However, the dispersion angle isn't as wide, and they don't seem to be as bright.

Does anyone here have any experience with these units?

Jeff

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Posted 5 years ago by Jeff Volp in General Home Automation

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