FWIW ... About 10 years ago, I hired a lawyer who specialized in product liability for a 2 day seminar for engineers and marketing types.
After alot of nit-picking, it was concluded that RED lamps or indicators weren't to be used for things that had anything to do with power. At the bottom of the argument was an ON/OFF switch which used a red lamp to indicate 'ON". His literal interpretation of the color RED be it in a lamp or even on a label was "Hands off", "Danger", etc ... An indication of something bad. We changed over to a power switch with a Green lamp to indicate "ON". Since then, I have imposed green LEDs for switches, power modules, etc ... to indicate "ON", "Everything's OK", etc ... An indication of something good. Red LEDs are used ONLY for alarm indicators (telco).
