2 pcs Electric Mosquito Fly Bug Insect Zapper Killer Trap Lamp 110V Stinger Pest
May 23, 2016
Excellent but wrong resistor
This unit works very well for the first several hours then the lamp goes out. After discharging the wire cage and opening the unit, I discovered that one resistor of unknown value had burned out. Obviously this burned resistor in both of these was under rated for powering the lamp. So I obtained a 50k 1/2 Watt resistor for each of these and soldered them in place where the burned resistor was. The result is that they both work flawlessly. It takes only 10 to 15 min to replace the burned under rated resistor with a 1/2 Watt 50k one. So it is not a big deal to make that replacement. Just make sure that you discharge the wire cage before opening these up, lest you receive a very nasty shock. So one star short due to bad under rated resistors which are easy to replace with 50k 1/2 Watt ones.
I just ordered two more and found that the resistor in question is rated at 1/4 W 5100 Ohms, or 5.1K. Just replace this one with one 1/2 W 47K or two parallel 1/4W 100K resistors to make it 1/2W at 50K Ohms and these will work just fine. The nice thing about replacing the units under rated resistor with my suggested resistors is that the bulb now lights without going out, making this an excellent product. The supplier of these needs to be informed of this change to make these better for those not inclined to do the simple task of replacing the resistor.
Top notch charger. Works with Efest Li-Mg and other Li-Ion batteries. Nice clear display of charging rate.
Exergen TAT5000 Professional Temporal Arterial Scanner Thermometer
Feb 12, 2022
Well worth the money
This is well made. Very strong external plastic case. Easy to use. In seconds it gives very accurate readings, plus or minus about about point 1 (.1) degree accuracy.