1.High luminous efficiency 2.Safety,easy,eyes protection 3. ... best energy saving lamp2.High luminous efficiency 3. No center dark,No noise4. energy saving, high power factor, long life ... high temperature and high pressure8. Durable, the outward appearance is exquisiteApplicationHome, Offices, Shops, Department Stores, Clubs, Restaurants, Hotels, Supermarkets HD-HT2001 High luminous efficiency ...