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摘要

Buying a Verilux HappyLite Sunshine Simulator, reader Humphrey Evans hoped it would make him... well, happy. The idea is that on dark mornings you sit close to what is essentially a small array of daylight-spectrum fluorescent tubes for up to 2 hours.rnHe has, however, instead become somewhat distressed by the exacting demands the instructions make when he's matching exposure times to his distance from the unit. For a half-hour blast, the instructions say to position yourself 228.6 millimetres from the unit - moving to 685.8 mm if you are planning a 2-hour session.rnWhat happens if you move 0.1 mm is not specified... and Evans is failing to see the bright side.