Rayhoo 10pcs Set G4 48-LED Warm White Light Bulb Lamps 3 Watt DC 12V LED Bulbs (Only DC 12V Non-dimmable) Note:This item Only suitable with DC 12V LED Transformer, Please use a LED transformer(which wattage is matched with the LED bulb), Not halogen transformer, If it worked with Halogen bulb or AC12V Driver it will not work, use halogen lamp transformer will cause the light bulb flashing even burning seriously. Light angle: 360 Directional; 48-LEDs, DC 12V. Easy Installation:Standard G4 base,can be easily fitted instead of ordinary halogen bulbs 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. ----IMPORTANT NOTICEDon't be fooled by the fake seller and counterfeit product!!... Rayhoo is the USA registered brand . We never authorize any seller to sell our products.. Please check the seller name before you place the order,If you receive the counterfeit product from fake seller. please report the violation to the Amazon DON'T FIT RV !! Save electricity bill: Replace 20W halogen bulb by 3W LED, save 85% on electricity bill of lighting