The cob spotlight is a spotlight that uses a COB LED light source as a light source.
The traditional spotlight source adopts halogen lamp and high-power LED. The halogen lamp has low luminous efficiency, relatively low power consumption, and the temperature of the irradiated environment rises, and the service life is short. However, the high-power led partial light effect is too strong, the spot is uneven, and there is darkness. Where. LED is far superior to traditional lighting products in terms of lighting principle, energy saving and environmental protection. Moreover, the unidirectionality of LED illumination forms the perfect support for spotlight distribution.
There is a saying in the market that LED spotlights are still non-COB. But you can ask one more question, why must it be COB? The answer is not enough. It is said that the COB illumination angle is small, there is a good COB light color, and it is simply said that the customer likes it.
To find out if COB is right or not, you have to look at what COB is. COB is Chip-On-Board, which originally refers to the packaging technology that integrates multiple semiconductor chips into one circuit board. In the LED industry, a plurality of LED chips are specifically packaged on a substrate to form a form of an illuminating light source (Fig. 1).
It is this product form that determines the technical characteristics of COB. The so-called "structural determining characteristics" in materials science also applies to products.
The difference between cob spotlights and ordinary spotlightsCod spotlights use a lot of electricity. The cob spotlight is a spotlight that uses a COB LED light source as a light source. The traditional spotlight source adopts halogen lamp and high-power LED. The halogen lamp has low luminous efficiency, relatively low power consumption, and the temperature of the irradiated environment rises, and the service life is short. However, the high-power led partial light effect is too strong, the spot is uneven, and there is darkness. Where.
LED is far superior to traditional lighting products in terms of lighting principle, energy saving and environmental protection. Moreover, the unidirectionality of LED illumination forms the perfect support for spotlight distribution.
(1) cob spot light emission efficiency can reach 80 Lm / w, a variety of color temperatures can be selected, their high color rendering index, color right; at the same time, they are soft and uniform light emission, no ghosting, The angle of illumination is wide, there is no sense of glare, and it does not hurt the human eye.
(2) Cob spotlights LED light source is a package, therefore, also belongs COB spotlights LED spotlight, usually with the COB chip Taiwan greater light efficiency 65 801m / W, ~ power, luminous efficiency The lower it is.
(3) The advantage of the cob spotlight is that the cob spotlight can be driven by low-voltage direct current, the load is small, the interference is weak, and the environment requirements for use are relatively low. Cob spotlights can be better controlled
The composition of the spectrum is therefore well suited for local or focused illumination. Cob spotlights have very strong illuminance, low brightness attenuation compared to conventional light sources, and their price is very civilian. The response time of the cob spotlight is very fast, as soon as the switch is turned on, it will light up without delay and flicker.
The light energy concentration of the cob spotlight is very high, and the purity is relatively high in the wavelength window. Cob has a long life span of 50,000 to 100,000 hours. Cob spotlights have good environmental protection, no need to add "mercury" in the production process, no need to inflate, good impact resistance, good shock resistance, easy transportation, and very environmentally friendly. Cob spotlights are very energy efficient. The spectrum of cob spotlights is almost entirely concentrated in the visible light range, and its luminous efficiency can reach 80~90%.
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