Yes. As long as the charger is plugged in the light is on. I've had the opener for 2 years and LOVE IT! Rarely needs charging. I leave opener in the cabinet with the wine glasses. It does not need to stay on the charger
There are two power supplies, YL-35-060080D and YL-35-090080D. Mine, a Model 4207, is the YL-35-090080D which is a 9 VDC, 80 mA. I assume the YL-35-060080D must be a 6 VDC, 80 mA. Hence the model number with the 6 in it has a 6 VDC adapter and the model with the 9 in it has a 9 VDC adapter
All of our products that are sold in the United States and Canada are manufactured and UL approved for 110-120 voltage. We do not recommend the use of a converter, transformer or other electronic device with our product. Converting the electricity may compromise the functionality of the product.