The radar-sensing LED fluorescent lamp should be composed of five parts: a high-quality LED chip, a low-voltage constant-current isolated power supply, a suitable heat sink relative to the power of the lamp, a light diffusing effect, a light source of the light source, and a sensitivity of the radar sensing.
LED chips are very important:
Good LED chip, high light efficiency, low temperature rise, high color rendering index, high junction temperature, antistatic. The most critical point is the high sensitivity. Heat dissipation is very important: if you emphasize that the LED is a cold light source and does not need to dissipate heat, it is a complete mistake. Before the LED chip with a really low heat has not been developed, the LED does not have a high-quality heat sink, so its life may be far less than the current one. Ordinary energy-saving lamps! Since the light decays to 70% of the initial luminous flux, it has already been identified that the LED energy saving lamp has reached the end of its life.
Power is important:
Whether it has passed the high temperature and high humidity, whether it has passed the high pressure safety regulation (UL), whether it has passed the electromagnetic compatibility (EMC/EMI), it is also a hard index, and also determines the real life of the LED energy saving lamp, in the barrel effect, The power source may be the short board of the radar-sensing LED fluorescent lamp. What kind of capacitor is used, the power is over, and there is no smart IC.
Cooling aluminum tubes are also important:
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Generally, the wall thickness of the aluminum tube which is generally maintained for three years is almost 0.5-0.8mm, the oval space is large, and the heat dissipation effect is relatively good. The material of the aluminum is also critical, and some are the heat dissipation of pure aluminum. The thermal conductivity is very high, up to 1.2. Inferior quality contains a lot of impurities. The heat dissipation is very poor, resulting in a coefficient of only 0.7.
The lampshade is critical:
The lampshade is the secondary light distribution of the LED energy-saving lamp. The current one has a lampshade, a transparent lampshade, a frosted lampshade, a milky white lampshade, and a light diffusing lampshade. No lampshade and transparent lampshade, no secondary light distribution, visible LED, multi-LED is multi-light source, direct glare, and the object is illuminated. The frosted lampshade lights up to see the LED light source, and the object is partially faint. The milky white lampshade lights up and does not see the LED light source but the light transmittance is low. High-quality LED energy-saving lamps generally use light-diffusing materials. When the LED light reaches the lampshade, the light is spread out, and the LED light is not visible after lighting.