Review on CQRobot Ocean: TSL25911FN Ambient Light Sensor for Raspberry Pi, Arduino, and STM32. Wide 0-88000Lux Detection Range, 600M:1 for Industries, Mobile Phones, Computers, Lighting, GPS, and More. by Benjamin Michels

This product works. However, the CQRobot software for Arduino is annoying. If properly unzipped and installed, it will not show up in the IDE. Turns out I was using an ESP8266 and the library file was just marked "avr". So I fixed it and it booted and worked. However, since it wasn't treated like a library, it was difficult to use in an existing project I had. So I tried the Adafruit equivalent library and viola - works great. But after looking at Adafruit's version, I found that their version is cheaper and has better support. So I kick myself in the butt for not doing more research when I bought it.