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Review title: I question its accuracy
Product review: I experimented with this using known values. For some examples, I plugged in a 75 watt light bulb and its readout said it was using 68 watts. On a 60 what bulb, it read 60. On a 40 watt bulb, it read 38. On a 25 watt bulb, it read 23. I have an LED night light that its specs states it uses between 1 and 2 watts but this watt meter said 0. I have an incandescent night light that is rated at 7 watts but the watt meter read 2. I tried it on 3 TVs and compared the watt meter readings to the manuals specs. The 1st TV manual states it uses 280 watts but the meter read 154. The 2nd TV is rated at 175 watts and the meter read 100. The 3rd TV is rated at 160 but the meter said 125. If you do the math, you can see that the percentage of error is not even consistent. I tried it on the TVs with them turned off to see what they drew for their instant on feature and it read 0 for all 3 TVs. If any of you try this experiment I'd like to hear your results.
