YouOKLight MR16 4W LED Light Bulbs, 40W Equivalent Incandescent, 3000K Warm White, 400Lm, LED Spotlight Bulb Bi-pin Lights, Track Lighting, Recessed Light, Non-Dimmable, DC12V, Pack of 4 Passed CE, FCC, ROHS and WEEE certification, safety, environmental protection, no pollution and harmful substances. MR16 standard shape: Bi-pin base (GU5.3), directly replace traditional halogen light bulb. Low 12volt lighting product, safe work voltage for human being and generate less heat than traditional light bulbs. Energy Saving. Replace 40W halogen bulb by 4W LED. Save over 90% on electricity bill of lighting Application including accent lighting; art galleries; hotels, museums, offices, restaurants, retail and general lighting