RAYHOO G4 LED Light Bulbs, G4 Bi-pin Base,AC/DC 12V Equivalent to 20W T3 Halogen Track Bulb Replacement LED Bulbs, Non-Dimmable, Warm White 3000K, 10-PACK Save electricity bill: Replace 20W halogen bulb by 1.5W LED, save 85% on electricity bill of lighting DC/AC 12V G4 LED - Compatible with AC 12V and DC 12V. No flickering if used with transformers whose wattage is matched with the LED bulb Easy Installation:Standard G4 base,can be easily fitted instead of ordinary halogen bulb Reduce re-lamp frequency:Lifespan is over 20000 hrs,save effort and maintenance costs on changing bulbs frequently. Eco-Friendly:No lead or mercury; No UV or IR Radiation.All of our light bulb has one year warranty, if the bulb has any problem, please contact Rayhoo, and we will help to solve all your problem.