Upgrade traditional MR11 GU4 base lamps to new and improved LEDs. LED MR11 bulbs provide a significant energy savings since they consume over 50% less energy than traditional models. You can simply remove outdated halogen lamps and plug-in new LED MR11 light bulbs in their place. They offer up-to 40,000 hours of continuous illumination without interruption. These lamps are great replacements for halogen versions commonly found in track lighting, landscape lighting and outdoor flood light fixtures. They give you the freedom to choose the most appropriate color temperature that suit your lighting needs.