Hi, I just bought two new lights Surefire E2E and L4. Well now the E2E will not work. This Light might have 30 minutes on it and no light. First, I change the batteries and nothing, then I changed the bulb, still nothing. So, I took the led off my L4 and the light worked, but I noticed the switch is stuck on and will not go off. But, I put the L4 switch on my E2E that light still won't work. I'm so mad after spending good money on my first real lights ,so I thought. Please help Nick