Leaflet LEC Exit Sign

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    that LED or LEC exit signs shall be used in building so as to meet the new standard of

    less than 5 watts per lighted face.

    2.  Product Characteristics

    2.1 Characteristics and advantages of LEC exit sign:

      Paper thin in thickness

      Light weight and flexible

      More reliable as no filament connected and will not burn out suddenly

      Minimal heat emission

      Highly visible in darkness, smoke and fog

      No hazardous materials of LEC film

     

    Maintenance free of LEC film

    2.2 Factors affect the performance of LEC exit sign:

      Type of phosphor used affects the life and brightness

      Quality of phosphor layer affects the uniformity of thickness and brightness

      Electrical driver affects the efficiency and power quality

    3. 

    Energy Performance of LEC Exit Sign

    To study the energy saving potential, measurement on electricity consumption was

    conducted on a LEC exit sign and a LED exit sign. Both signs are single side type

    with battery backup. Based on test results shown below, LEC exit sign consumed

    3.07 watts or about 8% less electrical power than LED exit sign.

    Types of Exit Signs Input Power (watt)

    LEC exit sign 3.07LED exit sign 3.35

    Conventional exit sign using T5 fluorescent lamp consumes about 17 watts. It is

    noted that both LEC and LED exit signs have very good energy saving potential, i.e.,

    saving about 80% energy in comparison with conventional exit sign.

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    The photo below shows the illumination performance of LEC and LED exit signs.

    Figure 2 – Photo of tested LEC exit sign (left) and LED exit sign (right)

    4. Summary

    LEC panel operates when the mico-encapsulated solid phosphors are excited by an

    alternating current. LEC exit sign is one of the commercial applications on LEC

    technology with its high visibility in darkness and smoke. The energy saving

    potential of LEC exit sign is comparable with LED exit sign. In terms of energy saving

    potential, LEC exit sign would be another option, beside LED exit sign for new

    installation or replacement of exit sign using T8 or T5 fluorescent lamp. When

    choosing the LEC exit sign, please kindly take note on some factors affecting the

    performance of LEC exit sign as discussed in section 2.2 above.

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