... performance and cost effective. The diameter of Par38 light is 121mm. The beam angle can be from ... PAR lamp has the advantage of small size, light weight, epoxy encapsulated, high strength to withstand mechanical ... of low heat, no heat radiation, cold light source, soft light, non-glare and they are without mercury, ... efficacy of our driver as well as high light transmittance of our high quality lens.3. ...