... the purpose of electromagnetic compatibilityUsing astigmatism lens, reflectors, favors LED astigmatismInstant on, no warm up time requiredImpact resistance, shock ... . Patented Lens design, Reliable Heat sink system, Brand LED chips, 3 years WarrantyApplication:They are widely used in ... ,municipal engineering, home or decorative lighting areas 2012 High brightness led ceiling light down light, CE&RoHS