
Technically the product works but the rotary switch is too loose when selecting options: first light, second light, both lights, off. If I'm not careful while turning the knob, it overrides the first click and goes to the second or third. Instead of turning on the light I want, I turn on the other light or both lights. Then I have to carefully return to click rotation to get what I want. It's annoying. Each turn of the switch should be more noticeable and stop. I may have received a defective device and should contact the seller.

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