Involvement:Expert (understands the inner workings) - Ownership:more than 1 month
- It works quite reliable, measurement are consistent and repeatable
- Included box
- It use antiquated 9V battery instead of more standard AA battery
- Cheap build quality
- Included box can be better built
- Instruction are in chinese only
This is a good starting point for flashlight hobbyist. It can reliably measure lighting level of various flashlight. If you want to make realiable measurement of Lux output of a flashlight, you can do ceiling bounce test. You can find lots more info on CPF for this technique...
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