... .9CRI:83Raworking environment: -20 degree to 50 degreeLifespan:50000hrsLED SPOTLIGHT, LED LIGHTAdvantages1,Environment friendly, no mercuryand or other hazardous ... and concentration effect avoid light loss, so that makes the lamp more concise and beautiful7,No twinkle, soft and ... eyes-discomfort caused by traditional light source, and is the protection of human eyesight and physical health.8,Luminous ...