Features & benefits: 2804-20: powerstate™ Brushless motor delivers up to 60% more power, is the most compact in its class at 6.9&Quot; in length, and provides up to 2x faster speed under heavy load. 2853-20: powerstate™ Brushless motor delivers up to 30% faster driving speeds and up to 2000in-lbs of torque while being the most compact impact driver at 4.59&Quot; in length. redlink plus™ intelligence: ensures optimal performance and provides overload protection to prevent damage to the tool and battery during heavy applications while still maintaining compatibility across the entire m18™ system. redlithium™ XC5.0 battery pack: delivers more work per charge and more work over the life of the pack than competitors 2735-20: Milwaukee M18 cordless LED work light has more than 600 times the life of conventional incandescent bulbs and runs up to 4 times as long.