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Question:

What are the differences between LED lights and HPS lamps?

What are the differences between LED lights and HPS lamps?

Answer:

LED advantages1. energy savingCompared with traditional fluorescent lamp and high pressure sodium lamp, LED lamp can save 50% to 70% energy consumption.2. environmental protectionLED lamp does not contain mercury (Hg), lead (Pb) and other elements, the entire process of manufacture, use and scrap does not cause environmental pollution.3. long lifeThe traditional fluorescent lamp has a lifetime of about 3000-5000 hours, and the service life of the LED lamp is more than 30000 hours (3-5 years).4. no strobe
Compared with LED lamp, high pressure sodium lamp has the following disadvantages:A, high power consumption, low power efficiency. For example, usually nominal 250W high-pressure sodium lamp, the overall power consumption measured at around 307W, power efficiency is only 66.8%. B, the color rendering index is low, Ra is usually only about 20-30, the light appears dark, the color restoration ability is poor; C, brightness controllability is poor. For high pressure sodium lamp, a special step-up power supply can be used to power the lamp before it can be lit. Its brightness can not be changed rapidly by transient state. D, short life, high maintenance cost. E, poor light distribution, water drop type spot effect, so that a lot of useless light transmission away from the road far away. The best spot effect should be a rectangular spot, illuminating the road and a certain range on both sides (the bat wing curve). F, high power, line laying costs are very high. Because of the large power consumption, the copper wire used for the power supply is relatively thick, and the LED street lamp can meet the same requirement with relatively thin copper wire.
LED advantages1. energy savingCompared with traditional fluorescent lamp and high pressure sodium lamp, LED lamp can save 50% to 70% energy consumption.2. environmental protectionLED lamp does not contain mercury (Hg), lead (Pb) and other elements, the entire process of manufacture, use and scrap does not cause environmental pollution.3. long lifeThe traditional fluorescent lamp has a lifetime of about 3000-5000 hours, and the service life of the LED lamp is more than 30000 hours (3-5 years).4. no strobeThe traditional fluorescent lamp produces 100-200 strobe times per second, and the LED lamp has no strobe to protect eyes.5. wide startTraditional fluorescent lamp voltage is too low to start normally, LED lamp can be started within 90V-260V range.6. instant lightThe traditional fluorescent lamp has a delayed opening, frequent switching will damage the lamp, and the LED lamp response time is nanosecond, instantly lit, and can be repeatedly switched countless times.7. strong materialTraditional light source adopts glass material, fragile and dangerous, LED lamp has no filament, no glass bubble, no vibration, and it is not easy to break.

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