The light activates when the cap is lifted. When you hold the unit in the ready position, with your thumb placed on the actuator the light illuminates the area. This model is great for indoors or outdoors at night, or areas with low-light. It contains 45 grams and sprays up to 10 to 20 short bursts with an effective range of up to 18 feet.
Dimensions 4 3/4 x 1 1/2 x 2 1/4