- Voltage Requirement: Ensure you have a transformer for 12V, as the GU5.3 spotlights operate at low voltage. Suitable for a working voltage of 100-240V. - Easy Installation: Designed in a standard MR16 shape (1.97 x 1.85 inches) with a GU5.3 base, these bulbs are a direct replacement for traditional MR16 halogen bulbs. They fit seamlessly into your existing fixtures, making them ideal for landscape, recessed, and track lighting applications. Note: This bulb replaces 1.97-inch MR16 halogen bulbs, not 1.38-inch MR11 lamps. Please measure your fixture's socket size for compatibility. - Cost-Effective Solution: The MR16 5W LED bulb boasts an impressive lifespan of over 30,000 hours, significantly reducing the frequency and cost associated with bulb replacements. Replace your traditional MR16 20W, 35W, or 40W halogen bulbs with this energy-efficient 5W LED option. - Healthy Lighting Performance: Enjoy vibrant and natural illumination with a high Color Rendering Index (CRI) of over 80 and a brightness of 450 lumens. This bulb is not dimmable and is free from lead, mercury, and harmful UV or IR radiation. - Versatile Applications: Perfect for use in various settings including home gardens, office lighting, and retail displays. The GU5.3 LED bulbs enhance the aesthetics of your space while providing reliable and efficient lighting.