Wahll Lighting initiated LED lighting industry in 2006 by LED panel light. After 9 years of developments, our service which is focussed in researching and developing, manufacturing, selling a series of LED lighting products and offers professional lighting engineering solutions and integrated services for both indoor and outdoor LED lighting...
What is LED? LEDs (light emitting diodes) are solid-state semiconductor devices that can convert electrical energy directly into light. led working princip