1, the comparison of theoretical service life of the
LED light source, life of 100000 hours, if lights for 5 hours a day, up to 55 years of life; Cold cathode light source, the life expectancy of 30000 hours of lights for 5 hours a day life can be up to 16 years.
the conclusion with the need of both the light source power drive and lamps and lanterns of the shell, the existing electronic lamps and lanterns of the power of life and the shell life in ten years, both the actual life of lamps and lanterns should be in 10 years is scientific.
2, energy saving, Luminous efficiency) Contrast for luxeon
for example red leds, 44 lumens per watt; Cold cathode tube, red 18 lumens/watt. Green LED, 30 lumens/watt; Green, cold cathode tube, 88 lumens/watt.
conclusion red LED lamps and lanterns than red cold cathode lamps and lanterns. Green cold cathode lamps and lanterns than green LED lamps and lanterns. The same lumens, power consumption is only 10% of incandescent lamp - 20%, both of which are high efficiency, energy saving of green light source.
3, moistureproof performance contrast
the LED lamps and lanterns is due to the low voltage large current work, requiring the moisture resistance; Cold cathode lamps and lanterns is due to the high voltage low current, tide resistance especially good.
conclusion moistureproof ability needs to strengthen the LED lamps and lanterns, cold cathode lamps and lanterns is especially suitable for other lamps and lanterns can't use damp environment.
4,
the LED lamps and lanterns of shock resistance, seismic performance special superiority; Cold cathode light source is made of glass, the seismic performance slightly less than LED, but than hot cathode lamps and lanterns seismic performance is superior to other classes.
conclusion both seismic type lamps and lanterns, can be used in a strong shock.
5, beating color contrast
LED light source can be beat, the pressure regulating discoloration, and shall not affect the product life. Cold cathode light source can beat, regulating color changing, and does not affect product life.
the conclusion can be used in both need to beat change, regulating discoloration.
6, color contrast LED light source color has red, green, blue, white, yellow, pale. Cold cathode light source color is white, bright red, pink, orange, peach, coloring milk yellow, bright yellow, yellow, green, green, blue, shallow blue, blue, violet, purple, pale.
conclusion both are colorful, not only can be used for lighting, but also can be used as a decorative lighting.
7, exterior contrast
the LED light source as the dot, also can connect line or plane, design scale, shape of lamps and lanterns is rich. Cold cathode light source due to the shape of the light source itself problems, affects the whole lamps and lanterns of aesthetic appearance.
conclusion LED as light source, lamps and lanterns, design scale is larger.
8, underwater performance LED lamps and lanterns is generally low voltage lamps and lanterns, underwater good job security, a large number of applications in underwater lights, buried lights, etc. Cold cathode lamps and lanterns is commonly high voltage input, not suitable for underwater or ground work.
coordinating editor li jie
summer lighting