A LAMP APPARATUS

摘要

PURPOSE: A lighting device is provided to obtain excellent heat dissipation efficiency by providing light of a wavelength band necessary for growing a plant by using minimum light. CONSTITUTION: A lighting device(100) includes a light emitting element portion(110) including a plurality of different light emitting elements. The lighting device includes a power supply portion(120) for driving the light emitting element portion. The lighting device includes an illumination control portion(130) outputting a pulse-width modulating signal and a driving portion(140) driving the light emitting element portion. The lighting device includes a detection portion(150) detecting the quantity of light of a specific wavelength band emitted from a surrounding environment The lighting device includes a storage portion(180) storing information about an optimal wavelength and an optimal light amount corresponding to plant growth time and necessary time for each growth time. The lighting device includes a user input portion(160) corresponding to a user interface. The lighting device includes a control portion(170) controlling a wavelength band or the quantity of the light.