We are very sorry to hear your having problems with the light you ordered from us. If it is defective, we will replace it no problem. However, first we need to test it. Please do the following:
Take a 9 volt battery.
Press the red exposed wire end to the plus side of the battery and hold. (+)
Simultaneously press the black exposed wire end to the negative side of the batter and hold (-).
If the light is working properly, it should light up. If it does not light up, it is defective.
