Additional Information:
Dusk to dawn lights utilise a photocell sensor some times called a CDS cell or photoresistor. Generally resistance increases as the light levels drop. This feature is particularly useful for security and safety purposes where it is important to maintain specific light levels and can be activated automatically when these light levels are reached.

Feature:
Direct alternative to the ordinary energy-saving lamps.
Green, environment friendly, no UV and IR radiation, no containing lead, mercury and other pollution elements.
Long service life, ensuring the normal use of more than 50,000 hours, three to four times as long as normal halogen lamps.
Stable performance and low consumption.
Designed to fit standard E27 fittings.
Suitable for office, exhibition or home use.

Specification:
Base type: E27
Input voltage: 85-265V
LED: Epistar
Bulb color: White Light color: Warm White(2900K-3200K); Natural white(3900K-4200K);Cool White(5700K-6000K)
Long
1、Make sure the sensor side have no obstruction or over 50cm from the obstruction.
2、Do not install it in the dark ambient light even daytime, this will cause the sensor bulb still "on" on the daytime.
3、Do not cover the sensor by hands or other material to light up the sensor bulb.
4、Please make sure the photosensor is without any obstacles in front of it and the sensor can point to a open space then test it again.
5、Do not test bulb inside manually, the speed of switch on and off normal lamp will effect sensor bulb function, so please test them on suitable place if needed.

• This bulb is ideal for lighting rooms and hallways where it is important to automatically have some light when it becomes dark without the need to physically switch on. This could be for security purposes where you would like a light to come on when you are not at home or for safety reasons where an area could become a hazard without any lighting
• In principle: the more free the two-sided infrared sensors (free view), the better the effect of the sensors. The more shady the sensors are (eg by covering), the sooner they turn on - the later they turn off.
• In comparison to using timer switches this bulb will come on based on the low light level so there is no need for adjustments when the clocks go back or forwards. The bulbs uses E27 fitting so will fit into a standard socket without the addition of any other products.
• Automation in the home can make every day task easier. When coming home at night to an dark house it can be more pleasant if a light has automatically been turned on.
• Since the bulbs have an IP50 degree, they are also suitable for use in outdoor lamps. We offer 2 years warranty on this product!

This bulb is ideal for lighting rooms and hallways where it is important to automatically have some light when it becomes dark without the need to physically switch on. This could be for security purposes where you would like a light to come on when you are not at home or for safety reasons where an area could become a hazard without any lightingELEOPTION