Laser sights combine instant sighting ability and precision. A laser sight projects a illuminated dot in variable colors (depending on the laser sight) representing the point of impact thus improving accuracy even in low light conditions or darkness. Most laser sights include extendable momentary pressure pads with a push button switch. Usually powered by a lithium battery and available in variable power (measured in milliwatts), the 5MW is the most widely available in today's market.