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Lamp rerating is modelling the predicted properties of a filament lamp when running the lamp at a voltage other than its specified rating, using a power law function of voltage. The following equations can be used to estimate the new operating point. The exact value of the exponent parameters will typically vary slightly with the particular lamp design. :''V''a = Applied voltage :''V''d = Design voltage *Rerated current = (''V''a/''V''d)0.55 × current at design voltage *Rerated luminous intensity = (''V''a/''V''d)3.4 to 3.5 × Luminous intensity at design voltage 〔 *Rerated life = (''V''a/''V''d)−12 to -16 × Life at design voltage 〔〔 *Rerated electrical power = (''V''a/''V''d)1.6 × Electrical power at design voltage 〔 *Rerated color temperature = (''V''a/''V''d)0.42 × Color temperature at design voltage 〔 ==See also== *Incandescent_light_bulb#Light_output_and_lifetime, which has much more detail. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Lamp rerating」の詳細全文を読む スポンサード リンク
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