... products of electric light source. its mainly features are as follows:1. Long lifespan. High frequency induction lamp had no filament ... as lampion and use to light for park decorate.7.High visible light proportion. 80% visible light can be saw by man' ... especially for factory, school, exhibition shop, station, port, airport, tunnel, made the real energy-saving. E40 Induciton Lamp High Bay Light/High ...