1-The holes for the screws are located on the handle at the rear of the unit, making sure the screws are inaccessible to the driver for fixing ... 2 ON / OFF button is located behind the solar panel which is not convenient if the panel is placed at an easily accessible place ... Moreover, it is a push button which we can not know s it in the ON position or the OFF position since it has always the same terrain in both positions ... 3- received with an adjustment knob on the motion detector that turns into space and out of its housing ..., where the setting can not and may cause the lamp does not work ... finally! Returned and refunded ...