LE GU5.3 LED Bulbs, 35W Halogen Bulbs Equivalent, Not Dimmable, 3.5W 12V, 280lm, MR16, 120 Beam Angle, Warm White, LED Light Bulbs, Pack of 5 Units Save electricity bill. Replace 50W halogen bulb by 3.5W LED. Save over 90% on electricity bill of lighting Input Voltage: 12 V DC/AC Note: For using this product, a LED driver (transformer with rectifier) with an output voltage of 12V DC is needed. Please search "Lighting EVER 5000062"on Amazon. Easy Installation. Can be easily fitted to replace regular GU5.3 halogen bulbs. Extremely long life. Lower maintenance costs by reducing re-lamp frequency