This has been very amusing dialogue . Im glad to see someone finnally taking on the b>S> claims of some of these companies . AS a lighting practitioner Its quite hilarious all the false claims . We have done much testing with leds for letters and cabinets . There is no way they can achieve the lumen out- put in a double cabinet sign and save the client money . Its all propaganda At least for the time being Its to bad many a client are being led like sheep to the slaughter . BAAAAD SOT do your home-work