{'fraction_non_alphanumeric': 0.01061320754716981, 'fraction_numerical': 0.0, 'mean_word_length': 5.431818181818182, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
LED equipment for light influence on photosynthesis investigations

The purpose of this work is design an energy-efficient LED lamp suitable for investigations in greenhouse production. The spectral characteristics of the lamp are consistent with the results of the latest research in this area. Possibilities for independent stepless control of the radiation's intensity in the different spectral areas are realized. The distribution of the irradiance in the processing field under different lamp operating modes is investigated. The appropriate thermal management ensures small thermal load on the LEDs with a passive cooling system. The realized lamp gives the opportunity to study the influence of the light flux's features on the development of different plants species and the determination of the optimal characteristics at low energy costs.