Made very cheaply - Optronics NightBlaster 2,000,000 cp. Rechargeable Spotlight QR-2000

It is of very poor quality like the majority of inexpensive Chinese manufactured electrical products. The quarts bulb burns out easily and you can't find replacements as unit is discontinued likely from a flood of returns. As others have mentioned the battery must be charged every 90 days or it goes bad. You can not let it overcharge or the battery goes bad still Replacement batteries cost more than entire light did. When you take it apart to diagnose why it became junk you find out how poorly made it is. The plastic trigger falls out as well as a spring. Light will probably last for one trip before it breaks and you end up with a working charger and broken light.