GU10 —— AC 110V / 220V (Dimmable); AC 85-265V (Not Dimmable). Power: 9W(3x3W) / 12W(4x3W) / 15W(5x3W). Base Type: GU10 / MR16. MR16 —— DC 12V. High-Quality Ultra Bright LED Bulbs. Huge variety of white tones and colors Very bright, clean light quality.