Testing of LED lamps as per manufactures specifications is undertaken at ECDD
Tests performed at the Complutense University of Madrid indicate that prolonged exposure to the shorter blue band spectrum LED lights may permanently damage the pigment epithelial cells of the retina.
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LED lamps have also been used for a number of demonstration projects for outdoor lighting and LED street lights.
Based on the M Set, the design incorporates a number of advancements including 'smart' air-conditioning, extensive use of LED lighting, internal and external closed-circuit television cameras, and a redesigned vestibule area with a wider entrance area and increased priority seating.
Led Zeppelin | LED | Led Zeppelin III | LAMP | Arc lamp | Led Zeppelin North American Tour 1973 | Led Zeppelin North American Tour 1975 | Led Zeppelin IV | LED lamp | LAMP (software bundle) | lamp (electrical component) | Lamp | lamp | arc lamp | Un-Led-Ed | The Blue Lamp | safety lamp | Neon lamp | Led Zeppelin United Kingdom Tour Summer 1969 | Led Zeppelin North American Tour 1977 | Led Zeppelin (album) | LED display | I Led Three Lives | High-intensity discharge lamp | Compact fluorescent lamp | Carbide lamp | When the Levee Breaks#Led Zeppelin's version | ''When It's Lamp Lighting Time In The Valley'' | When It's Lamp Lighting Time in the Valley | When Giants Walked the Earth: A Biography of Led Zeppelin |
Fluorescent lighting (preferably with bulbs radiating growth-friendly spectra) and light-emitting diode lighting can give sufficient light to support a significant number of indoor bonsai species.