Color changeable options: Easy to set color temperature by switching a lever on the Junction Box. If you are not sure which color temperature is suitable for your room. this product is for you. By switching colors you can find which color is suitable. Three Colors 3000K/4000K/5000K can be adjustable. High brightness for every color temperature: 900 Lumens dimmable With 360°of horizontal rotation and up to 90°of vertical rotation, which can meet any lighting angle needed. More quantity options: You can choose 1 pack, 6 pack and 10 pack. Energy efficient: Up to 90% energy-saving compare with halogen counterpart. Estimated Energy Cost per Year: $1.8 based on 3hrs/day, 11/Kwh. Extremely Long Life: 50000 hours. ETL certified, energy star certified, IC Rated (approved for direct contact with insulation).