From product description:
This product adopts light sensing and human motion infrared technology, it's ideal for any toilets.
Features
The light will turn on at night automatically in red color and turn to green when people sit down on the toilet.
The product adopts light sensing and human motion infrared technology, energy-saving and environmental friendly.
It will turn off within 30-50s after you close the toilet lid automatically.
Simple to install by using two adhesive strips, no technicians and tools needed.
Powered by two AA batteries, very easy and convenient to change the batteries.
Specifications
Material: ABS
LED quantity: 1 Red & 1 Green
Luminous flux: 0.8-1.2LM
Battery: 2 * 3V AA Battery (Not Included)
LED lifespan: 5 years
Light Color: Red & Green
Sensor type: Human infrared induction
Item size: 9.0 * 7.5 * 2.5cm / 3.5 * 3.0 * 1.0in (L * W * H)
Item weight: 60g / 2.1oz
Package size: 9.0 * 7.5 * 2.8cm / 3.5 * 3.0 * 1.1in (L * W * H)
Package weight:71g / 2.5oz
Looks like an UFO in the toilet when u see it in the middle of the night….