Assertion: lamp's light | /r/HasProperty | approved
Facets:
Source sentences:
text: a light with a steady mode is considered approved only if it conforms to BS 6102/3 or an equivalent European standard;
text: a light without a steady mode is considered approved only if it flashes at a constant rate of between 60 and 240 flashes per minute and has a luminous intensity of at least 4 candela;