The winter 2016 version of the popular Philips 8W MR16 now delivers an ultra bright lighting effect of 710 lumens! The brightest LED retrofit LED of its kind. It's low voltage and operates on AC voltages meaning it can be used with existing transformers, no need to rewire to an LED driver.
This is a superb offering that is designed to replace energy hungry 50W halogens and is dimmable as standard. Philips Master MR16 LED bulbs are renown for high quality and longevity and widely regarded as the best MR16 LEDs on the market.
Such a difference.
I have just used these to replace 9 50W halogens in my kitchen. I was unsure as to whether or not I would have to replace all 9 transformers as well, but no need to worry they all worked perfectly without any problems. In my opinion the quality of light is just as good as the halogens they replaced. I'm delighted so far.
I bought four Philips 8W Masterled MR16 bulbs to try as replacements in my halogen downlight fittings. I encountered four drawbacks, but could not hear the fans that others complained about. 1: I had to bend the ends of the existing spring retaining rings (carefully by heating and bending) because the centres of the bulbs are not flush with the edges. 2: The bulbs take about half a second or so to light up after switching on, which is slightly disconcerting, but nowhere near as bad as CFL bulbs used to be. 3: One bulb sometimes goes out after a time, probably because of the transformer it runs off, which happens to be different from the others. This is a pity, but hopefully an exception. 4: The beams definitely appear narrower than the previous halogen beams, even though all are nominally 36 degrees. I saw this reported by another user. For me, the last drawback is really the only one that matters and will probably mean that I will not end up not replacing the halogens in all my locations, which is a pity since the LEDs are much lower wattage and should last much longer than halogens. It is interesting that I had trouble with the one light where I had earlier replaced the transformer after it was overheating. I thought that the much lower wattage of the LEDs would eliminate overheating problems, but reports that there are fans inside the Masterleds suggest that heat removal is actually an issue. My light might be going out because the transformer is the wrong type, but it only goes out after quite a long time, so overheating looks the more likely reason.
Worked with my existing transformers!
36 Degree Beams