Review on 12 Pack MR16 LED Bulbs 50W Halogen Equivalent - 5W GU5.3 4000K Neutral White Non-Dimmable 45 Degree Beam Angle For Landscape, Recessed & Track Lighting by Jon Cherian

Beware , I have the same model and brand low voltage track lighting through out my home 29 heads all with external low voltage transformer at each head. I have replaced 5 heads in the past with MR16 LED bulbs , some GE brand and some a brand from Home Depo. When I put these in 3 of my low voltage transformers failed, one blew immediately , smoked and the others failed while we were out eating dinner with in an our of installation of bulb. Those three heads won’t work with any type bulb of course now. I am guessing here but it’s almost like some of these bulbs were 120volt. One bulb was still working two hours later but after blowing transformers I took the lamp out and put back old bulb.These bulbs are all loose and are packaged kind of like an egg carton with a simple hole each lamp sits in in cardboard. Outside of box says made in China. I fear some are 120 volt and some not or something is off in manufacturing . I cannot think of another reason why they ruined three other lamp heads by blowing low voltage transformer. I have had no issues replacing lamps with LED with other brands. I have been in lighting business for decades and understand lamp types etc. Revains lists these as 12 volt but it ruined three heads or fixtures.