General description Standard shape MR11 12V 3W LED bulbs with GU4 bi-pin base, this pack includes 18 MR11 LED bulbs. These bulbs are designed to replace 20W halogen bulbs, providing significant energy savings and efficiency. Technical specifications Power: 3W Voltage: 12V AC/DC Lifespan: Over 50,000 hours Equivalent to: 20W halogen bulb Start-up time: Less than 0.5 seconds Installation Easy installation with standard shape MR11 and GU4 base. Can be easily installed instead of ordinary MR11 halogen bulbs. Usage Ideal for home and landscape track lighting. Provides instant full light without warm-up time. Energy saving, reducing lighting electricity bills by up to 90%.