Assertion: led's output | /r/HasProperty | required
Facets:
Source sentences:
text: When higher light outputs are required, a pulse width modulated current with a fairly short duty cycle (“ON-OFF” Ratio) allows the diode current and therefore the output
text: Multiple LEDs are used in applications where more light output than available from a single LED is required.
text: When higher light outputs are required, a pulse width modulated current with a fairly short duty cycle ("ON-OFF" Ratio) allows the diode current and therefore the output