This video compares 365nm and 400nm UV LED black lights. The presenter demonstrates the difference in visible light output between the two wavelengths, showing how 365nm lights emit minimal visible light while 400nm lights produce a noticeable purple glow. The video also highlights the impact of wavelength on the visibility of objects under the lights.
109623 4 года назад 2:47This video compares the effectiveness of fluorescent and LED black lights. The video tests the light output, ambient light, and UV light of each type of fixture. The video also includes a "wasp test" to see which light attracts insects more.
164079 5 лет назад 4:12This video compares two black lights: a directional light bar and a floodlight. The video shows how each light illuminates a room and highlights the differences in their beams. The reviewer demonstrates the lights in action and provides insights into their effectiveness.
2280 1 год назад 1:33This video reviews a pair of rechargeable black lights. The reviewer highlights the lights' features, including their weatherproof design, adjustable stand, and brightness settings. They then demonstrate the lights' effectiveness in illuminating Halloween decorations, showcasing the dramatic difference they make in the dark.
2038 1 год назад 1:56