Q:Can it be installed on Coolpix b600?
Answer: The mounting shape is a common specification for cameras, so if your camera has a flashlight mounting hole, it will arrive.
Even if you don't have it, you can attach it by connecting a stay for an action camera to the 1/4 inch screw hole on the bottom tripod.
However, it does not synchronize with the shutter
Question: What is the M button for?
A: This button is for checking the remaining battery level. The remaining amount is displayed in 5 steps. I use it as an auxiliary light for the nose photo, and it's pretty good.
Q: Is Wight Light soft?
Answer: It's a soft light as it shines through the milky white cover. It is convenient because the intensity of the light can be switched in 4 stages (place).
Question: How does it connect to the stand?
Answer: It can be attached to common tripod screw 1/4 inch size and cold shoe mount.
Question: Can it be attached to gopro8 media modular?
Answer: Yes, it can be installed.
Question: Is it possible to keep the light on while supplying power? (Long time)
Answer: At least, it can be lit while the power is supplied.
I haven't tried how long it stays on.