4. Electric lamp and discharge devices: systems
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Lamp control circuit having a brightness condition controller ha

Electric lamp and discharge devices: systems – Automatic substitution of the power supply
Patent

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Lamp switching

Electric lamp and discharge devices: systems – Automatic substitution of the power supply – With load device or electrode substitution
Patent

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LED illuminator with capability of stable brightness

Electric lamp and discharge devices: systems – Automatic substitution of the power supply
Reexamination Certificate

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Light control device for high frequency lighted fluorescent lamp

Electric lamp and discharge devices: systems – Automatic substitution of the power supply
Patent

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Light dimming system for emergency operation

Electric lamp and discharge devices: systems – Automatic substitution of the power supply
Patent

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Light sources

Electric lamp and discharge devices: systems – Automatic substitution of the power supply
Patent

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Lighting device for normal and emergent use

Electric lamp and discharge devices: systems – Automatic substitution of the power supply
Reexamination Certificate

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Lighting device with multiple power sources and multiple...

Electric lamp and discharge devices: systems – Automatic substitution of the power supply
Reexamination Certificate

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Low profile emergency ballast

Electric lamp and discharge devices: systems – Automatic substitution of the power supply
Reexamination Certificate

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Luminaire converter

Electric lamp and discharge devices: systems – Automatic substitution of the power supply – With load device or electrode substitution
Patent

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