Analysis of the difference between the cost of LED bulb and energy saving lamp

The characteristics of LED with energy saving, the application of LED in the development of lighting are quite fast, at this stage LED in addition to street lamps, wall lamp and other public facilities lighting applications to improve visibility, Europe and the United States and Japan government has also expanded plans and steps of LED is used as the light source, and China various local governments are also actively developing LED lamp set, focus is to reduce the consumption of energy.

LED lighting development so far, in addition to public lighting applications, also lighting applications in the general family, although the major lighting manufacturers such as Philips, OSRAM and GE have not yet officially launched LED bulb, the market has begun to circulate many small factory manufacturing LED lighting, than the average price of the bulb is much higher, but have the advantages of energy saving considerable benefits. Under the premise of energy saving and environmental protection, to replace the current use of incandescent bulbs or light bulbs.

Comparison of the efficiency of Lighting efficiency

At present the general indoor lighting, mainly still incandescent bulbs with energy-saving light bulbs, LED bulbs are still in the minority. Currently on the market to the available LED lighting as the basis of comparison, comparing the brightness of the incandescent lamp, energy saving bulb and bulb LED is similar to that of the best luminous efficiency of LED bulbs, per watt luminous efficiency can reach above 70 to 80 lumens, followed by energy-saving light bulbs, the general products per Watt can reach 57 for the flow, luminous efficiency the incandescent light bulb, light emitting efficiency is only 12 lumens per watt. In life, incandescent lamp life is about 1200 hours, energy-saving bulbs can reach 5000 to 6000 hours, LED bulb can reach 10000 hours, life is two times, the light bulb. Single power issues, LED bulbs really than incandescent bulbs and energy-saving light bulbs to save more energy.

Table 1 technical differences of incandescent bulbs, energy saving bulbs and LED bulbs

Figure 1: The of Efficiency between Fluorescent Bulb Compact and Comparison Incandescent LED

Type

Voltage Voltage (V)

Power consumption Power Comsuption (W)

Luminous flux Luminous Flux (LM)

Luminous efficiency Lighting Efficiency (lm/W)

Life Life (hour)

Incandescent bulb (Incandescent)

One hundred and fifteen

Forty

470.

Twelve

One thousand and two hundred

Energy saving bulb (Compact Fluorescent Lamp)

One hundred and twenty

Eleven

Six hundred and twenty-seven

Fifty-seven

Six thousand

LED bulb (LED Light Bulb)

250 (max)

Five

350~400

70~80

Ten thousand

Use cost variance

If the use of electricity to consider, 10 thousand hours as evaluation basis, the general 11W lighting 110 kwh electricity consumption (1 * 1 = 1 kilowatt hours), and the 5W LED lighting consumption 50 kwh of electricity in Taiwan, non business use of electricity per kilowatt peak of about 2.31 yuan to calculate, 11W bulbs ten thousand small when the electricity was 254 yuan, 5W LED lamp ten thousand hours of electricity for 116 yuan. LED light bulb is only 46% of electricity saving bulbs, down conversion, but also to help reduce carbon dioxide emissions, environmental and economic concept is the advantage.

The bulb is included in the cost calculation, the average price of 11W bulbs sold on the market at present is NT $160, and 10 thousand hours will consume more than 1 bulbs (the life of only 5 thousand to 6 thousand hours), the average of 10 thousand hours to buy bulbs cost about 286 yuan, while the price of LED light bulbs of the same conditions about 880 yuan, compared with the LED lighting bulb, 3.07 times as expensive.

The cost of electricity and light bulbs, the average total cost per 10 thousand hour bulbs is about 540 yuan, the total cost of the use of LED lighting for 996 yuan, the total cost of the use of LED lighting is still 1.84 times the bulbs.

Table 2 the cost difference between LED bulb and power saving lamp (every 10 thousand hours)

Compact 2: Cost Gap LED Bulb and Fluorescent Lamp (per 10000 hours) Figure between Light The

Type

Power consumption Power Consumption (W)

Electricity cost Power Cost (NT$)

Lamp cost Lamp Cost (NT$)

Total cost of use Total Cost (NT$)

compact fluorescents

Eleven

NT$$254

NT$$286

NT$$540

LED bulb

Five

NT$$116

NT$$880

NT$$996

Cost gap between LED bulbs and light bulbs

-

0.46 (Times)

3.07 (Times)

1.84 (Times)

conclusion

Although the LED in terms of power consumption and energy saving bulb and longer than incandescent bulbs, but due to the current average price per unit time is LED lighting bulb, 3 times more expensive, the total cost for the use of LED light bulbs 1.84 times, so LED still wants to replace the lamp bulbs is still too early to say. However, with the improvement of LED luminous efficiency, or the cost of power generation as the price of oil has increased, the advantages of energy-saving LED bulbs will gradually highlight.

Source: LEDinside