Infrared Motion Sensor LED Light Bulb E27 A19 (12W)

I have two infrared sensor bulbs, one is bigger, one is smaller, LED bulb with 12W. $10 each, buy two for $18 Operation instruction: 1. Bulb can be installed near stair, better to let bulb head turn to exit/entrance 2. The bulb should be kept far away from heater, air condition, fridge, stove, such places which temperature is high and sensitive (over absolute zero degree object will probably make bulb light up) 3. Do not put any shield, furniture, or big object around the bulb 4. Do not turn it to the window for avoiding hot air /white light perturbance, and body motion to wrongly light up the bulb 5. Do not install bulb near gate or airway Auto PIR motion detection for light on/off Durable and energy-saving High sensitivity, high light and low consumption Suitable for corridor, pathway, stair, garden, yard. When you in sensor range, it works about 30 seconds. After 30 seconds, if you not move, the lamp not work. Product of origin: China