The lightbox is quite thick as the light need to have a certain distance to evenly distributed to the front face of the printing material. In the past or even now florescent light being used to illuminate the light which requires more electrical energy. We at Bumijaya Advertising using LED tube which is brighter and energy saving which you can save some electric bill. Some other still using florescent as it cheaper compared to LED. We provide LED tube and not florescent keeping the price same as the florescent. We believe LED is more reliable in the long run, which gain customer's trust in terms of good quality product with reasonable price.