Light sensor led fluorescent lamps for school classrooms can save energy up to 83%
Principle of light sensor LED tube:
The light sensor controller and the constant illuminance light sensor automatically control the LED lamp tube. The two ends of the shell are equipped with matching ports that match the end of the lamp tube and the plug. The visible light sensor and MCU are built in, and the visible light sensor collection opening is provided on the shell; The visible light sensor is connected to the MCU to provide it with the illuminance parameter; one or more ports of the MCU are used to connect the power supply component of the lamp tube, which outputs corresponding control signals to the power supply component according to the received illuminance parameter, In order to control the opening, closing or current output of the power supply component, so as to control the power of the LED lamp tube, and realize the maximum energy saving.
A large number of fluorescent tubes are used in school classrooms, and energy-saving renovation is imperative. If the light-controlled led tube is adopted, automatic light management is fully realized, which is truly convenient for management and achieves the best effect of obvious energy saving. The new type of light-sensing LED tube can adjust the brightness according to the intensity of the ambient light to ensure that the illumination is maintained in a constant illuminance range. It is suitable for places with high contrast requirements, and effectively improves the energy-saving rate and reduces Light attenuation, extending the life of LED lamps
Comparison of energy-saving reports in school classrooms (ordinary led fluorescent tubes and fluorescent tubes)
1. Compare with 20 40w fluorescent lamps
Calculate the power consumption according to the power: 20*45w (ballast power consumption 5w) = 900w
The lighting time is 12 hours, and the power consumption is 900*12=10800/1000=10.8 kWh
Luminous flux: single 40*55 (light effect)=2200lm, light utilization rate: 0.6*2200=1320lm
Two sets of 1320*2=2640lm
2. The same 20 LED fluorescent lamps
Calculate power consumption according to power: 20*16w=320w
Calculated according to the lighting time for 12 hours: 12*320=3.84 kWh
Luminous flux: single 16*100 (light effect)=1600lm light utilization rate: 1600lm half-surface light, no loss
Two sets of one set 1600*2=3200lm
Energy saving comparison 580/900=64%
3. The energy-saving situation of using light-sensing led fluorescent lamps in school classrooms:
Option 1, one-to-one replacement, electricity consumption during the day, 3w (near the window) + middle of the classroom (8w), average = 6w
Electricity at night, 16w
Whole day electricity consumption: 6w*20*8+16w*20*4 hours=2240/1000=2.24 kWh
Compared with 40w fluorescent lamp energy saving comparison: 10.8-2.24/10.8=79%
Solution 2: Use 16 16w light-sensing led fluorescent lamps to replace 20 40w ordinary fluorescent lamps to increase the overall light flux
The luminous efficiency is as high as 120lm/w, that is, a single luminous flux is about 2000lm
1. The illuminance during the day has also increased
2. At night, the flux of 20 ordinary fluorescent lights is: 2640 (a group) * 10=26400lm
16 light sensor led fluorescent light flux: 2000*2 (one group)*8=32000lm
That is, the flux of 16 induction LED fluorescent lamps is greater than that of 20 ordinary fluorescent lamps.
The daily power consumption of the induction led fluorescent lamp: 6w*16pcs*8 hours during the day=768W/hour
16 pcs*16w*4 hours at night=1024w/hour
Power consumption: 768+1024=1792/1000=1.792 kWh
Ordinary 40w fluorescent lamp consumes 10.8 degrees per day
Energy saving comparison: (10.8-1.792)/10.8=83%
As the cost of LED tube materials continues to decline, the light-sensing LED tube is currently falling sharply. On the one hand, the increase in output has spread a lot of costs, so it can quickly spread to major schools. At the same time, other light-sensing controlled lamps are derived from the light-sensing led fluorescent lamp. For example, a full-off induction lamp, when the sun's light intensity is large enough, the led lamp will automatically go out. Automatic light-up type, when the sunlight is not enough and the visibility drops, the induction led tube can automatically light up and start lighting.
