Incandescent bulb in line with Wikipedia. Incandescent lamp globe filament light bulb heated at high temperature and bright incandescent.
Grow the light as reported by Wikipedia. Grow artificial light source light, usually light, designed photosynthesis appropriate light plant growth.
The equipment and the machine from barry's homepage as stated in Nevadabarry. Commercial manual helicopters. Old documents brochurescatalogsservice infoetc.