Warm Tips:<br>1. Do NOT install both bulbs in one light fixture<br>2. Keep both motion sensor bulbs at least 6.5ft apart avoid mutul effect<br>3. The setting of detection range changes like an exponential fuction, that means the two thirds of the setting dial in orientation clockwise changes only a littel but the other third changes a lot although you only rotate the setting knob a little. Furthermore, on the middle point of dial is NOT the half detection range.<br>4.Do NOT install the bulb in a pendant light fixture , or the bulb may keep on cause of the continuous sway of pendant light