Your hands catch on fire for the duration, for you they are harmless and emit warmth and shed bright light in a 10ft radius and dim light for an additional 10ft.

As an action you may touch an object that is not being worn or carried to set it on fire or make a melee spell attack against one creature within 5 feet of you. On a hit, the target takes 1d6 fire damage and  it is set on fire. At the beginning of each of the target's turns  the creature takes an additional 1 point of fire damage until the creature or puts out the flames as an action. Another creature can also use their action to put out the flames.