
Power cable has standard USB-A connector on one end but round connetor on other, so if you lose it you can't replace it with a standard cable. Fresnel lens has some distortion. Using it with fold-down legs on a flat surface requires putting your head directly over the device and looking down, which isn't comfortable. OK for hand-held use for short periods. LED lights seem reasonably bright using disposable AAA batteries. Not awful but not really recommended.

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