It is very bright compared to the 40 W krypton ball. But the brightness of the LED is not gentle compared to a light bulb. There is uncomfortable until it gets rid of, but the power consumption of 6 W is very attractive.
I thought that LED lights are strongly directional and may not be suitable for diagonally mounted instruments like this time, but it seems that they are somehow usable. After that I am worried about the lifespan, but I think that I will gradually replace it with an incandescent bulb.