Successful small farms

Successful small farms

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... lifethan the aquot;hot cathodeaquot; unit. It is used most frequently on flashing circuits. Because of the higher light output per watt input, more illumination and less heat is obtained per watt from fluorescent lamps ... The circuit diagram for the fixture appears on the ballast container. Characteristics. ... For example, a 40-watt fluorescent lamp produces approximately 2800 lumens, or 70 lumens per watt. A 40-wattanbsp;...


Title:Successful small farms
Author: Herbert T. Leavy
Publisher: - 1978
ISBN-13:

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