A set of articles used to provide, dispense and cure a photocurable composition, characterized in that it comprises: a) at least one encased light source device in a housing comprising: - a parasitically powered visible light emitting diode (LED) in combination with at least one electrical element, and - a connector plug having electrical terminals designed to engage in a directly corresponding receptacle connector of a mobile device or adaptor for a mobile device, having a rechargeable battery, and b) a packaged photocurable composition including a cap, wherein, - the LED and at least one electrical element are positioned in the housing with the LED at one position of the housing which is an opening and said connector plug protrudes from another position of the housing, or the housed LED is positioned distant from the housed connector plug separated by a flexible cable in electrical contact with at least one element selected from the above mentioned group in either housing, and - the LED is wired to receive at least 5V DC input obtainable from the receptacle connector of the said mobile device once charged after passing through at least one electrical element, allowing the energisation of the LED. a) at least one encased light source device in a housing comprising: - a parasitically powered visible light emitting diode (LED) in combination with at least one electrical element, and - a connector plug having electrical terminals designed to engage in a directly corresponding receptacle connector of a mobile device or adaptor for a mobile device, having a rechargeable battery, and - a parasitically powered visible light emitting diode (LED) in combination with at least one electrical element, and - a connector plug having electrical terminals designed to engage in a directly corresponding receptacle connector of a mobile device or adaptor for a mobile device, having a rechargeable battery, and b) a packaged photocurable composition including a cap, wherein, - the LED and at least one electrical element are positioned in the housing with the LED at one position of the housing which is an opening and said connector plug protrudes from another position of the housing, or the housed LED is positioned distant from the housed connector plug separated by a flexible cable in electrical contact with at least one element selected from the above mentioned group in either housing, and - the LED is wired to receive at least 5V DC input obtainable from the receptacle connector of the said mobile device once charged after passing through at least one electrical element, allowing the energisation of the LED. - the LED and at least one electrical element are positioned in the housing with the LED at one position of the housing which is an opening and said connector plug protrudes from another position of the housing, or the housed LED is positioned distant from the housed connector plug separated by a flexible cable in electrical contact with at least one element selected from the above mentioned group in either housing, and - the LED is wired to receive at least 5V DC input obtainable from the receptacle connector of the said mobile device once charged after passing through at least one electrical element, allowing the energisation of the LED. <EOS>