... 3 to 5 days for sampels 2012 led r7s light replacement lamp led / led r7s light / led r7s lamp ... install and maintain,replacement of traditional bulbs and no subsidiary fixture. 3. Application Area: A. Basic commercial lighting; B. ... matching in downlight, celling light, household lighting etc; C. Shopping, lighting, specialty lighting, hotel lighting, office lighting, home light; D. Commercial show ...