Lamp is defended in children's sleep

The utility model discloses a lamp is defended in children's sleep, including the infrared thermopile sensor for measure the heat source information in the room, LED sends out optical module, includes the LED light source that provides the light source for children's daily activity, colour temperature selection circuit sends out at LED according to children's active state and switches over between the multiple colour temperature of the luminous colour temperature of optical module, constant current dimmer circuit exports the PWM wave form of different duty cycles, PWM plastic filter circuit filters the PWM wave form of constant current dimmer circuit output, main control chip, according to children's the different colour temperature of active state control colour temperature selection circuit switching, the luminous luminance of PWM wave form in order to change a LED optical module of the different duty cycles of control constant current dimmer circuit output, voltage conversion circuit, the magnitude of volt