The Orchid Doctor Articles under the Heading Sodium Lamps

Sodium Lamps Comments
SODIUM LAMPS: 1000-watt Size They are effective for most genera except paphiopedilums, they have a reported life of 25,000+ hours, but can last five years or more; light intensity chart for the lamps placed four feet above plants in an area 12 x 12 ft., refer to A83-1258 0

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