At present, the light box factory has basically adopted roller shutter lights and side light strips as the main light sources, and the old T4-T8 lights have been gradually eliminated. Their shortcomings are uneven light emission, prone to ribs, dark areas and insufficient light in the picture. Now the roller shutter lamp and side light bar completely solve these shortcomings. The following light box manufacturers will introduce the commonly used roller shutter lights and side light bars of light boxes.
Roller shutter lamp: The roller shutter lamp bar is made up of LED lamp bars with connecting wires in parallel, and the distance between the lamp bars can be adjusted freely according to the thickness of the light box. Because the appearance is similar to that of blinds, there are also names such as shutter lamp, curtain lamp and grid lamp. The picture below shows the roller shutter light bar:
Side light-emitting strip: LED side light-emitting strip is a kind of light source of light box, as the name implies, it is a light-emitting strip from the side of the lamp bead. Suitable for double-sided light boxes, installed at the top, bottom, left and right, projecting light to the side.
I. Indoor light boxes (Cabo light boxes, ultra-thin light box, shopping malls, railway stations, subway light boxes, etc.). )
For light boxes with a thickness of more than 8cm, it is recommended to use 2835 roller shutter lamps with relatively moderate brightness (the size of lamp beads is 2.8mm*3.5mm, and the brightness of a single lamp bead is 20-25lm). The surface illuminance (illuminance: the degree of light intensity stimulation received by the pupil surface of human eyes) of the advertising cloth of the light box using this type of light bar is between 2000 and 2500 lux, because the light box is already indoors and there is one around it.
In addition, for indoor light boxes with a light box thickness of less than 8cm, it is recommended to use 3030 diffuse reflection light bar, which is also a kind of rolling light bar. The difference is that this kind of light bar has a lens, and the luminous angle is relatively large, which can generally reach 170, so the number of light bars can be relatively reduced, which can greatly reduce the cost.
Two, outdoor light boxes (outdoor signs, poles, billboards, Bula light boxes, bus shelters, etc.). )
It is recommended to use model 5730 (the size of the lamp bead is 5.7mm*3.0mm, and the brightness of a single lamp bead is 50-55lm), with relatively high brightness. The surface illumination of the advertising cloth of the light box using this type of light bar is between 3500 and 4500 lux, because the high brightness light bar can make the advertisement of the light box look more eye-catching, attract the attention of the crowd and achieve better results. Of course, in addition to choosing high brightness light bars, we should also give full consideration to the waterproof performance of light boxes, because some light boxes are large advertising light boxes in buildings, on the one hand, it is more troublesome to install compared with other light boxes, on the other hand, if the light bars are often damaged due to insufficient waterproof performance, it is also a waste of manpower and material resources, so it is recommended to choose waterproof light bars for outdoor light boxes.
For this kind of light box, it is recommended to use side light bars. The characteristic of this light bar is that it only needs to be arranged up and down, or left and right, and it is very simple and convenient to connect 220V electricity directly. Moreover, the farther the light bar is from the picture of the light box, the better the lighting effect. Suitable for light boxes with a distance of 3 meters.