Features: SAVE MONEY: Lower consumption and higher brightness, 3W/5W LED replaces 30W-50W Halogen Spotlight bulb, save up to 90% on electricity bill. WIDE VOLTAGE: AD/DC 12V-24V working voltage, easy to install and widely used. EASY TO INSTALL: Standard GU4.0 Base, Plug & Play, Warm White, Natural White and Cool White, the light spreads to a larger area and is brighter, to create a cozy and bright environment. LONG LIFESPAN: with a lifespan of up to 30000 hours, you can reduce the hassle of frequently replacing your light bulbs. lower heat, safer than incandescent bulbs. WIDE APPLICATION: for landscape lighting, range hood, display cabinet, recessed lighting, hotel lighting, residential lighting, etc. If your working voltage is 100-240V, a 12V transformer is needed. We recommend using an LED transformer or keeping 1 or 2 halogen lamps to meet the minimum power of a traditional transformer. Specifications: Base: MR11/GU4, Power: 3W/5W Color temperature: Warm White:3000K, Natural White:4000-4500K, Cool White:6000K Dimensions: Dia 1.38 inch x L1.38 inch / Dia35 mm x L35 mm Input voltage: AC/DC10-30V Lumens: 3W:300LM, 5W:500LM LED Quantity: 3W:12pcs, 5W:18pcs CRI (Ra):> 80 Beam angle: 120 degrees Package includes: 10 x MR11 LED bulbs