теплый белый cob ковка 3w 5w 7w 9w 12w 15w 20w 25w 30w встраиваемый светодиодный прожектор регулируемый в розницу

1,cri>80 or cri>90, which is better? it depends on the efficiency if you want. cri>80 is high lumen, cri>90 looks like high end. 2, how can i choose the color temperature about led spot light? warm white is 2700k-3500k, suitable for living room, bedroom, ward, bar, restaurant. nature white is 4000k-4500k, suitable for office, classroom, reading room, consulting room, inspection room, machining workshop. cool white is 5000k-6500k, suitable for hot processing workshops, high lighting places.