Important Facts on Shopping for LED Light Bulbs: When shopping for light bulbs, please DO NOT go by the listing photos, as the photos cannot give you an accurate match. Instead, please verify the light bulb dimensions, shape code, base, voltage, and wattage all match the type you are replacing. Please also DO NOT go by the applications listed in the listing. There are many variations of light bulbs used for the same application. So, please make sure to make the right match prior to order. To avoid flicker, please try to use LED transformers. If flickering occurs using a halogen transformer, please add 1-3 halogen light bulbs to help stabilize the circuit, because the LEDs consume too little wattage for the system to work properly. Please be advised in general LED light bulbs are not designed to be left on all night long every day. Extended hours of use every day will dramatically shorten the lifespan of most LED light bulbs due to overheating the LED chips. Base, Shape and Dimensions Base: GU5.3 Bi-Pin with 5.3mm distance between the 2 pins Shape: MR16 Reflector Diameter: 2.0 inches Length: 2.0 inches Please make sure the light bulb base matches what your light fixture has. Another common reflector light bulb with 2 pins is MR11 GU4, which looks very similar to MR16 in the photos but are much smaller, with a reflector diameter of only 1.38" and pin distance of 4mm. Please verify your light bulb size and pin distance prior to order. Lighting Features Power: 3.5 Watts, 20W Halogen Replacement, 250 Lumens Voltage: 12V AC or DC Low Voltage Beam Angle: 38° Material: Polycarbonate PC Plastic Color Rendering Index (CRI): 80+ for vivid and enhanced color Not dimmable Instant On. No Mercury. Lifetime: 30,000 hours (27 years with average of 3 hours use per day) CE and RoHS compliant Pack of 6 Light Temperature These LED light bulbs output 2700K light temperature, which is considered warm white or soft white. The glow is a bit yellowish, providing a warm and cozy ambiance. Please note this is NOT the bright white or daylight color. Please look carefully at the output light color prior to purchase.