We view the Sig Lasers as the evident choice for the very best light for the SIG P365 A good tool light/laser is one of the most effective devices that you can contribute to any type of gun.A light will, of course, assist you plainly identify your target in dark environments.Since the Sig Lasers needed to be tiny enough to fit the P365, it's not one of the most effective weapon light around.With that said said, the 100 lumens it creates are still bright sufficient to illuminate an entirely dark big space.The Sig has push-button controls on both sides of the light's housing.Promptly pushing either button will certainly make it stay on until you push either switch once again.