150 lumens not 200, got defective unit and am returning. - VISM KeyMod LED Weapon Flashlight

Thought this looked like an interesting item and it showed available so I purchased. Then I received an out of stock email. One month to the day after ordering the unit arrived. Factory packaging from Vism says this is 150 lumen unit not the 200 listed. No matter, light will not work with either tail switch or pressure switch,or with a different battery. Called customer service and rep was less than apologetic for my inconvenience. This unit is getting returned for a refund. I am thankful that I experienced this with an inexpensive item, not a major purchase.