However, fluorescent tubes do have significant drawbacks and until recently there was no alternative light source to rival fluorescent for efficiency and cost.
Power LEDs are now starting to offer a competitive performance and the BSGA Technical Guideline C5 – Flexface Report – LED back lighting of Flexface signs as alternative to fluorescent tubes is now available for download as a PDF in the Members’ Area of this website. Log on to download now.
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European Sign Federation