Adaptive Tactical is now manufacturing a new training tool called the Non-Lite. The Non-Lite is a replica of a pistol mounted flashlight.
The Non-Lite is designed to approximate the size and weight of a weapon mounted light. In training, weapon lights can take a beating resulting in broken or damaged lights. While military units, police officers and armed citizens may need to train with the real thing, there are other instances where training with the firearm does not specifically need the illumination capabilities of an actual light.
For example, officers conducting weapon retention training may put a lot of stress on the weapon and mounted accessory, but have no need of any illumination capability.