How to choose LED floodlight
How to choose LED floodlight
The price of the led floodlight depends on the quality, the quality depends on the heat dissipation and the influence on the heat dissipation in the basic parts such as LED Chips, Power supply and shell. In the market, the power supply of floodlights can be divided into constant current drive and linear drive. The cost of constant current power supply is much higher than that of linear power supply. Why choose constant current drive? According to the V/A characteristic of the LED chip, the slight change of the input voltage of the power supply will increase the current flowing through the LED chip, which will lead to the increase of the temperature. In order to prevent the temperature rise caused by power supply, constant current drive is the best solution. In order to keep the current flowing through the LED unchanged, so as to ensure the life and light decay of the LED beads.
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Difference of COB and SMD packaging
Difference of COB and SMD packaging
Currently, LED floodlights use COB and SMD packaged by mainstream led light source. The difference between COB and SMD lies in heat dissipation, luminous efficiency and dazzle.
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Features of LED Flood Light
Features of LED Flood Light
Has energy-efficient, long lifespan, No (UV IR) radiation, no pollution, no radiation, No Hg and other heavy metal, recyclable, no pollution and electromagnetic interference features. It adopts the isolated low-voltage constant current driver, no flash while the common lamps all use DC driver which will inevitably strobe and do harm to the eyes. High luminous efficiency: small heat 90% electric energy of LED light can transfer into visible light while the common filament lamp only transfer 20% with 80% transferring to heat energy.
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LED Flood Light Test and Measurement Standard
LED Flood Light Test and Measurement Standard
Photobiological Safety Method of Measuring and Specifying Color Rendering of Light Sources. Colorimetry and Photometry of Floodlights: The spectroradiometric Measurement of Light Soures, The measurement of absolute luminous intensity distributions and The photometry of goniophotometer of luminares.
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