MUMENG Lot of 4 12V 4W MR16 LED Bulbs - 7000K Cool White MR16 LED Spotlights 300 Lumen 60 Degree Beam Super Energy-saving MR16 4W LED Bulb 300LM 60 Degree Beam Angle 7000K Cool Size50 * 54 MM Weight:55g AC/DV12V lighting product, safe work voltage for human being and generate less heat than traditional light bulbs MR16 standard shape: Bi-pin base (GU5.3), directLY replace traditional halogen light bulb Long lifespan: Reduce re-lamp frequency. Lifespan is over 30,000 hrs. Application including accent lighting, art galleries, hotels, museums, offices, restaurants, retail and general lighting