Can a T4 lamp be used as the light source for an ultra-thin light box of 1.5 meters x 1.2 meters?
The principle of ultra-thin light boxes is more like the backlight principle of mobile phones and LED displays. That is, use the light strips up, down, left, and right to illuminate the light guide plate toward the center, and then the light box cloth and film in front of the light guide plate can be illuminated and you can see clearly. This principle can also be used with T4. If the joints of the lamp tubes are dark or not bright enough, I think you are talking about the traditional light box, that is, the internal lighting type. If it is the internal lighting type, as long as the distance between the light sources is slightly smaller than the distance between the light source and the light box cloth, then the The dark area of the seam can basically not be noticed.
