Q:LED flashlight capacitor

155 1.5U, 105 1U, 155 charging current of 100MA, by using 105 current into 68MA, 155 is bad is probably because not enough pressure (many factory home 250V), and the actual voltage to 320V, so easily broken, so you'd better change into 400V or 450V, capacitance just the size effect of charging time, influence a little smaller, you can choose 2G105 CBB21!

Q:What is the voltage and current of the 9 head LED flashlight?

The nominal voltage of single white light LED is 3.2V, 20mA.

Q:Led flashlight, section seven, No. 3 battery for 3,7V lithium battery. What type do you need?

There is no limit, mainly voltage problems, the 3 Section 7 battery voltage is 4.5V in series, and the lithium battery voltage is low, but the current is generally applicable to led flashlight.

Q:C8 Q5 CREE five LED surefire flashlight light going on

Some inexpensive flashlights may use a very common drive circuit board, and I estimate that the drive current is not enough. There is a low level light fake Q5.

Q:I want to put the flashlight's LED led on the 12V motorcycle. When the rear taillight is used, how can I change the line?

4 series into 1 groups, the voltage is just right, directly connected to the power supply, do not have any original, and if you think the brightness is not enough, you can group parallel. That's what my car 12V power supply does.

Q:Led the flashlight doesn't work. What's wrong with it?

1, the switch to take out, put the battery into the barrel, and use the electric things to connect the battery and cylinder body, see bright?. If it's bright, the switch doesn't work. You tighten the switch and try again.2. make sure that your battery is broken, you can also take the lamp holder out of the test, also try the method just now, to see whether it is bright or not. If not, it is likely that the IC or LED on the circuit board is out of order.

Q:10W's LED bright flashlight is on all the time. How much is the power per hour?

Battery voltage 12V, 10W is 833mA, power consumption 833mAh per hour.

Q:What type of battery 5 has the longest time in a LED flashlight?

AA battery flashlight outstanding is small and portable and battery easy to obtain, but if the ratio of luminance and life or 18650 lithium is king, if you use a AA battery flashlight with rechargeable batteries will be much better than the disposable alkaline batteries, disposable alkaline battery nominal capacity of how much, but behind the resistanceincreases drop too fast, can put out the capacity can reach half! Rechargeable battery internal resistance is relatively small, you can relatively large current discharge, it is recommended SANYO eneloop rechargeable battery, you will be satisfied

Q:How much is the price of the SF007 LED explosion-proof flashlight on the high beam?

The market price is 447 yuan, the cost is about 40 yuan, and the battery is about 8 yuan. The service life is not ideal. If the switch is rotary, it is easy to oxidize inside.

Q:What's the advantage of LED flashlights?

Outdoor activities, we are trying to minimize things, so in the flashlight, we should try to use efficient light LED flashlight, to ensure sufficient brightness and long endurance.