Work light is LED, but this product does not recommend using LED. And I wrote it on the back of the package. There was not it on the item description page of monotaro but it was not possible to use it as it was after all. When connecting the LED to this product, turning off the power, the LED repeatedly flickered, it could not turn off properly. For now, we bite the trifurcate on this product, forced to forcibly by displaying one LED, one fluorescent lamp and two working lights. I could look for a different product if there was explanation that LED use was not recommended. I'm sorry.
A neon tube (?) That lights up when it is off is inserted in series, and because the neon tube (?) Is shorted when it is on, depending on the type of load (in a load with high internal resistance,?) Completely It may not be cut. That's why we recommend you to https://www.monotaro.com/g/00409449/ who will not have an indicator to control the LED certification and inverters. It was made in Japan.