AOPUTTRIVER Light Meter AP-5000A Digital Illuminance Meter with Display 3999 (Range from 1～400,000Lux),Unit Lux/Fc,MAX/MIN and 270 Degree Rotatable Detector

I tried to use it to test my flashlight and the value is kind of closed to what the flashlight manual said, but I guess this is more suitable for indoor lights than flashlight. When comparing which floor lamps is brighter, different angles seem to affect the values a lot which probably is true. I guess it takes kind of practice to use it properly. I don't have another one to compare but at least the values all makes sense when I tested it. Great tool.

I snagged this because I wanted to be able to better compare lights for reviews, as well as see if manufacturer claims for Lux/FC are what they claim.I think i could also adjust my camera settings based on light measured with this meter.I have no experience testing lights, so i will need to educate myself before i publish any findings on lights.

The Light Meter Lux Meter Logger AP-5000A has exceeded my expectations in terms of accuracy, versatility, and ease of use. As a hobbyist gardener and aquarium enthusiast, having a reliable tool to measure luminosity is essential, and this device delivers on all fronts.One of the standout features of the AP-5000A is its wide measurement range, which spans from 0.1 to 400,000 lux (0.1 to 40,000 foot candles). This broad range allows me to accurately measure light intensity in a variety of settings, from low-light indoor environments to bright outdoor spaces.The rotatable detector adds to the device's versatility, allowing me to adjust the angle of measurement for optimal accuracy. Whether I'm measuring light levels above my plants or inside my aquarium, I can easily position the detector for precise readings.The digital display is clear and easy to read, providing instant feedback on light intensity levels. I appreciate the intuitive design of the interface, which allows for quick and straightforward operation without the need for complicated settings or calibration procedures.One of the most valuable features of the AP-5000A is its data logging capabilities. The device can store and record measurement data over time, allowing me to track changes in light levels and identify patterns that may impact plant growth or aquarium health. This data logging functionality provides valuable insights and helps me make informed decisions about lighting conditions in my garden and aquarium.The build quality of the AP-5000A is excellent, with durable materials that feel sturdy and reliable. The compact size and lightweight design make it easy to carry with me when monitoring light levels in different areas of my home and garden.Overall, I highly recommend the Light Meter Lux Meter Logger AP-5000A to anyone in need of a reliable and accurate tool for measuring light intensity. Its wide measurement range, rotatable detector, data logging capabilities, and user-friendly design make it an indispensable accessory for hobbyists, professionals, and enthusiasts alike.

From the outset, everything about this product feels cheap.The cap that covers the detector for protection is a hard, inflexible plastic. The unit housing plastic also feels like bargain basement quality. The unit, however, well-sized to fit a larger hand, making the meter easy to hold. All the controls are within reach, though you have to move your hand up and down a bit.The instruction sheet is exactly that, one sheet with two printed sides. The translation to English is pretty good, though there isn’t a whole lot to learn about operating the unit. The controls are ON/OFF; HOLD; MEM(ory); Lux or FC; MAX/MIN; and Backlkight. Not much to learn. Readings are easy to take and I have to assume they are correct.There is also a temperature indicator which may be selected in Centigrade or Fahrenheit.Finally, as if to emphasize the cheapness of design and construction of the unit, the compartment for the two (supplied) AAA batteries is secured with two tiny Phillips head screws Teeny little black screws that don’t stand out against the black plastic compartment cover. No screwdriver is provided. A fabric storage bag is provided. There is also a ¼-20 tripod socket on the bottom of the unit.As I said, the unit appears to work properly. I had hoped to use this in my photography and videography. But except in a general way of measuring overall light levels, I don’t see this as playing a big role. As a utility tool for measuring overall light levels, it seems to work, but feels cheap overall.Jerry