... Mercury or other Hazardous substances6. Runs Cool: Safer to Handle7. Beam angle is available in 15°, 30°,45°,60° and 90 ... . High efficacy, up to 90% energy saving compared with halogen lamp.Product description:1, LED light source: CREE, EDISON, Epistar, etc ... development. Low Price LED Par Light 3W-12W energy-saving lamp