As the first production flood headlights of the Spark Flashlight company, the Spark SD6 500CW and the Spark SD6 460NW are great at two things: durability and output. The 500CW and 460NW are composed of an aluminum alloy body and have an IPX-8 waterproof standard, making it stand out amongst the other headlights on the market. Another great feature of the lights is that they include a clip so that the light can be removed from the strap and placed on any applicable surface. But the most useful accessory for the 500CW/460NW is the magnetic attachment for the light: it allows the user to stick the light to any magnetic metal surface, which makes it ideal for anyone that does mechanical work or needs a background light.