... 2.Cross-ventilation design 3.color is optional 5 Inch LED Sense Down Light *Chip Source: Cree or Everlight Feature:1. Low ... NO UV infrared and other radiation ,shock vibration resistant7. Imported light source ensure high brightness,8. External constant- current driver, ... warm white10. Instant on, no warm up time required. Application:LED downlights are widely used in store, house, hotel, office, ...