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6-Watt (40W Equivalent) MR 16 GU 5.3 LED Bulb, 400 Lumens, Warm/ Soft (3000K) - Non-Dimmable
Get a longer lasting, safe, and affordable alternative to standard MR16 GU5.3 light bulbs using this 6-watt MR16 GU5.3 LED Bulb from Monoprice!
This 12 VDC bulb uses only 6 watts of power, but produces 400 lumens of light energy at 3000K, equivalent to a 40-watt incandescent MR16 bulb. It uses the GU5.3 track lighting base.
This aluminum bodied, indoor bulb is 1.9" in diameter and 2.2" tall. It uses a Bridgelux chipset, is rated for up to 50,000 hours of use before failure, and carries a three year replacement warranty. The power factor is greater than 0.95.
It generates light in the 3000K range with a Color Rendering Index greater than 80, which generates the kind of soft and warm feeling that is perfect for most home lighting needs. This bulb is not designed to be dimmable. While it may be physically dimmed in some light fixtures, doing so can damage the bulb's internal circuitry and severely reduce its expected life span.
Monoprice warrants these bulbs for a full THREE (3) YEARS and will provide a new replacement for any bulbs that fail due to defects in materials or workmanship during the warranty period.
PROS: Fits well
CONS: About 30 mm longer than the standard MR 16 bulb which made it tough to fit into one of my fixtures.
1. The pins on the new light bulbs were about 1 to 2 mm longer than on the original bulbs, resulting in a short gap between the bulb and its socket. As the bulb is in an enclosure, it would be unlikely for metal to get into that gap, I hope.
2. One bulb seemed to burn out in less than one hour. Luckily the replacement bulb worked in the same location.
3. Some of the bulbs seem to flicker, i.e, they do not go out completely, but the light intensity varies. This appears to happen intermittently. I’m not sure how I can determine if the transformer and bulb enclosures are the problem or the bulbs themselves.
PROS: these bulbs use only about 10% of the original Halogen bulbs
CONS: The light appears in a narrower beam.
Perhaps the quality may not be as good as most of your merchandise.
They fit fine in my normal housings, but I have some art lights that have a 0-90 degree gimbal and the lights were REALLY tight - I shaved off some of the extra pin length and had to bend the metal to get them to fit. I recommend ordering a few to test before going gang-busters.
I do lighting control systems and like some other LEDs - these flicker a bit at the bottom of the dimming cycle - the slightest pulse of energy will cause them to emit. This can be solved by adding a choke/power line filter or adjusting your dimming cycle.
Good color (for an LED)
CONS: Slightly larger than standard
Some flickering on dim cycle (dimmer dependent)
But they are too dim and the angle spread is too narrow. I would rate them at 30W bulb light output, not 40W.
They replaced 50W halogen bulbs and are noticeably less light. I think I will be returning them.
PROS: Inexpensive, fit well
CONS: Not enough light. Light angle too narrow.
PROS: Good Price.
CONS: Not the dimensions as listed on website.
So I fixed them myself and they seem to work. Hopefully they'll last...
CONS: Bulb hardware lacks quality
Thank you for your review and truly sorry to hear about the condition of two of the bulbs for PID 12164. We do offer a 30 day return policy as well as a three year warranty on this item. Should you encounter any issues, feel free to contact us and we will be happy to assist you.