simple past tense and past participle of lead
a semiconductor two-terminal component whose electrical characteristics are light-sensitive
Under somebody's control or leadership.
A photodiode is a semiconductor p-n junction device that converts light into an electrical current. The current is generated when photons are absorbed in the photodiode.
Of a farm, etc.: managed by a deputy instead of the owner or tenant in person.
diode such that light emitted at a p-n junction is proportional to the bias current; color depends on the material used
a light-emitting diode (a semiconductor diode which glows when a voltage is applied)
‘light sources can be fluorescent tubes, optical fibres, or LEDs’; ‘an LED display’;