LED fluorescent lamp series have the same installing method as traditional ones. (Compared with famous brand fluorescent lamp, under the same brightness, a LED fluorescent lamp consumes only 1/3 electric energy of the traditional one. ) and long service time. For production line illumination, we produce 5W light-concentrating LED fluorescent lamp to replace traditional 40W fluorescent lamp. Its efficiency in saving energy is quite obvious. It is featured with: Compact circuit design, up to 98.42% luminous efficiency. Practical sample of LED fluorescent lamp can work continuously under waving voltage for as long as 550 days, equal to 30000 hours lighting time, without any failure. This test proves that: The overall circuit of LED fluorescent lamp is safe and reliable.