Streamlight manufactures lights for law enforcement so you can expect that level of quality with all of their products. The Strion LED HPL is a bit longer than the Strion LED at 7 inches, but really packs a punch. Compact and portable, yet powerful and durable, the Strion LED is useful for a wide variety of applications. It's perfect for a professional on the go as it fits easily into luggage or a carry on. The C4 LED bulb is brighter than ever putting out 40,000 candle power with four different output modes: high, medium, low, and strobe. The tactical tail switch provides continuous activation and cycling through output modes. The Strion LED HPL can withstand the elements of demanding work environments and weather conditions. The case is made of machined aircraft grade aluminum (anodized to prevent corrosion) and the lens of virtually unbreakable polycarbonate (O-ring sealed). The Strion has an IPX4 water resistance rating and an impact resistance of 2 meters. This is a light built to last. The rechargeable lithium lion battery makes the Strion LD not only hassle-free, but also incredibly cost effective. This model includes a 120-Volt AC charger, 12-Volt DC charger, two clip in charger stations, and fits previous Strion chargers. If you are tired of constantly replacing batteries and you want a light that will last you for years the Streamlight Strion LED HPL is for you.