Active Member
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[China]
Address: UNIT 04, 7/F, BRIGHT WAY TOWER, NO.33 MONG KOK ROAD, KOWLOON, HONG KONG
Contact name:Max Dan
Shenzhen OColour Technologies Co., Ltd |
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SMD2525 Taxi Topper on Nissan Leaf with 5500nits P5 Taxicab LED Billboard
How to calculate the brightness of P5 (Pixel density: 40000 pixels/sq.m), 1/8 constant scanning Taxi LED Display?
(R) 900mcd + (G) 1000mcd + (B) 300mcd/1000 x 40000(Pixel density: 40000 pixels/sq.m) / 8(1/8 scan) x 70% = 7000cd/sq.m;
Theoretically, the brightness of our P5 Outdoor SMD2525 Taxi LED Display has 7000nits brightness. However, as most taxis now in the market are driven by gasoline, it won't be economical if the taxi led display consumes too much power. Then we limit the brightness to 5500 - 6000nits. The advertising contents on the taxi led display can be seen even under direct sunlight.
Energy-saving:
According to our energy-saving design of PCB and other factors, we only use one set of 4.2V-90A DC-DC convertor(Brand: Great wall), so the maximum power consumption is only:
378W;
and average power consumption is:
80- 200W;
Another feature of the SMD2525 led lamp is that we make use of larger-sized led chips with small electrical current:
R: 9mil x 9mil Counter electrode; LED chip brand: Epistar;
G: 9mil x 11mil; LED chip brand: Silan;
B: 9mi x 11mil; LED chip brand: Silan;
Compared with smaller-sized led chips, larger-sized led chips can generate more lights with the same electrical current.
Some people may quote you that their taxi led display has about 5000nits brightness by using SMD3528. It is a joke! SMD3528 is used only for INDOOR APPLICATONS, as the raw material of SMD3528, the silicone it uses are not anti-UV. As we all know, there is UV-rays in the lighting of sunlight.
Popular Application:
Taxi top led display media, taxi roof led display advertising
Specifications:
Item | Technical Parameters | |
Screen model | OC-MT-P5SMD2525 | |
Red chip (wavelength range: 620-630nm, 5nm) | Brightness range:500-900mcd | |
Green chip (wavelength range:460-470nm, 4nm) | Brightness range: 1200-1500mcd | |
Blue chip (Wavelength range: 520-530nm, 4nm) | Brightness range: 300-450mcd | |
Module | Led configuration | SMD 3 IN 1: SMD2525/SMD3528 |
Pixel pitch (mm) | 5mm(0.2 inch) | |
Module resolution (W X H) | W 32 x H 32 dots | |
Module dimension (W x H inch) | W 6.3 x H 6.3 x D 0.67 inch | |
Cabinet | Module quantity(W × H) | W 6 × H 2, per side |
Cabinet resolution(W × H) | W 192 × 64 dots, per side | |
Cabinet dimension(W x H inch) | W 37.80 x H 12.60 inch per side | |
Cabinet surface area(sq.ft) | 3.31 sq.ft / (0.31sq.m) per side | |
Physical pixel density (dots/sq.ft) | 3716dots/sq.ft(40000dots/㎡) | |
Brightness | ≥465CD/sq.ft (5000CD/㎡) | |
Cabinet flatness(inch) | ≤0.08inch (0.2mm) | |
Maintenance | Back-maintained | |
Cabinet material | Aluminum | |
Cabinet weight | ≤48.5lb (22kg) | |
Optical parameters | Single-point brightness correction | Available |
Single-point color correction | Available | |
Color temperature(K) | 3200—9300 adjustable | |
Horizontal viewing angle | 120° | |
Viewing angle (Vertical) | 120° | |
Brightness Uniformity | <3% | |
Color uniformity | ≥97% | |
Contrast ratio | 5000:1 | |
Electrical parameters | Max power consumption | 580W per unit of taxi led screen |
Average power consumption | 180-240W per unit of taxi screen | |
Power supply | DC9-36V | |
Security Features | GB4943/EN60950 | |
Drive mode | Constant Current Driver, 1/8 scan | |
Gray scale level | 10 bit | |
Refresh rate(Hz) | ≥960 | |
Processing | ≥14 bit | |
Module comes with power failure | Save luminance, Color correction, module data | |
Use parameter | Life time(hrs) | 100,000 hours |
Operating temperature / humidity | -40F–140F (-40-60℃) /5%-95%RH(non-condensing) | |
Storage temperature / humidity | -40F–140F (-40-60℃) /5%-95%RH(non-condensing) | |
Certification | CCC/FCC/TUV/CE/ETL | |
Image of outdoor full color SMD2525 LED lamp:
Main parameters of Outdoor SMD2525 LED Lamp:
We can also conclude that if we want to get the same amount of brightness, we can drive the larger-sized led chips by consuming less electrical currents. Consequently, our solution for taxi led display is energy-saving. It will consume less gasoline of the taxi company or taxi owner. This point is very important for taxi advertising, especially for those Taxi firms who have pure electrical cars: the following example took place in Ukraine - Pure Electrical Nissan Leaf Taxi:
