Model No:RH-HBL-18 RH-HBL-18 is 44.1mm diameter Reflector TIR Glass Lens , which is designed for small Led chips such as 1W/3W/4W/5W/6W/7W/8W/9W/10W with 10-20 degree beam angle,can narrow the view degree through adjusting the distance between COB led and