How about buying a used strobe?

pu1. I need to see the amount of light, but it's better to have less light. The method of determining the amount of light emitted is that when the light emitting portion of the strobe is yellow, the amount of light emitted is large. It's not that. If it's transparent and slightly blue, it doesn't emit much light, so you can buy a strobe like this

2017-12-02

OK

pu2. Oh, I got good information, too SKY

2017-12-02

OK

pu3. I only thought about the number of times I bought the strobe, but the amount of light is important. That's good information

2017-12-02

OK