Wiring Schematic Diagram Guide

Overview:
Multifunctional patrol led flashlights are suitable to power, oil, machinery, petrochemical, gas maintenance, military, police, mining enterprises and other workplaces, it is efficient and practical as security, patrol, inspection equipment. This camera flashlight aslo can be a security products, it is very helpful to go outdoor.


Features:
● Multifunctional patrol led flashlight with lighting, video, camera, sound recording function.

● 4G high-capacity memory, support for all-weather high-definition camera, convenient USB interface with computer communications to facilitate the uploading and downloading data.

● Light using three imported high brightness white LED lamp, 3 kinds of light regulation mode, the service life of up to 100,000 hours. Reflector with high-tech surface treatment - orange peel aluminum reflector cup, reflective, high efficiency, tempered glass lens, the distance of light up to 200 meters.

● 2 Lithium-batteries, large capacity, long life, low self-discharge, the economic environment.

● Early use flashlight, the outer surface has three buttons, they are namely, key lighting, DV keys and camera key, key is also the DV Power key: Press the power on or off 3S, DV open and close.

● High hardness and magnesium alloy casing, to ensure that its able to withstand strong impact; Rain-proof and high temperature resistance, humidity resistance, and can be used in a variety of harsh environmental conditions.

● Outer surface is army gray, light oxidation, deep non-slip handle, light and beautiful and easily to carry.

Very simple, versatile modular design

No limits to the number of modules used in the ring

     Circuit diagram 1

                                                          

    Circuit diagram 2

parts list.

R1______________1K5  1/4W Resistor
R2____________680R   1/4W Resistor (Optional, see text)

C1_____________47µF   25V Electrolytic Capacitor

D1_____________LED  any type

Q1___________BC337    45V 800mA NPN Transistor

P1_____________SPST Pushbutton

LP1____________Filament Lamp 12 or 24V (See text)

The purpose of this circuit was to create a ring in which LEDs or Lamps illuminate sequentially. Its main feature is a high versatility: you can build a loop containing any number of LEDs or Lamps, as each illuminating device has its own small circuit.
The diagrams show three-stage circuits for simplicity: you can add an unlimited number of stages (shown in dashed boxes), provided the last stage output was returned to the first stage input, as shown.
P1 pushbutton purpose is to allow a sure start of the sequence at power-on but, when a high number of stages is used, it also allows illumination of more than one LED or Lamp at a time, e.g. one device illuminated and three out and so on.
After power-on, P1 should be held closed until only the LED or Lamp related to the module to which the pushbutton is connected remains steady illuminated. When P1 is released the sequencer starts: if P1 is pushed briefly after the sequence is started, several types of sequence can be obtained, depending from the total number of stages.

Notes:

• If one LED per module is used, voltage supply can range from 6 to 15V.
• You can use several LEDs per module. They must be wired in series and supply voltage must be related to their number.
• Using 24V supply (the maximum permitted voltage), about 10 LEDs wired in series can be connected to each module, about 7 at 15V and no more than 5 at 12V.
• The right number of LEDs can vary, as it is depending by their color and brightness required.
• Using incandescent lamps, voltage supply can range from 9 to 24V. Obviously, the bulb voltage rating must be the same of supply voltage.
• In any case, bulbs may also be wired in series, e.g. four 6V bulbs wired in series can be connected to each module and powered by 24V supply.
• If you intend to use bulbs drawing more than 400mA current, BC337 transistors should be substituted by Darlington types like BD677, BD679, BD681, 2N6037, 2N6038, 2N6039 etc.
• As Darlington transistors usually have a built-in Base-Emitter resistor, R1 can be omitted, further reducing parts counting.
• Sequencer speed can be varied changing C1 value.
• A similar design appeared in print about forty years ago. It used germanium transistors and low voltage bulbs. I think the use of LEDs, silicon transistors, Darlington transistors and 24V supply an interesting improvement..

We moved to the country yard to live with our parents last month. They found that the house need more bright especially in the rainy winter morning & evening. They planed to buy some bulbs to make our house much brighter. Some one stated to buy some incandescent bulbs. Some suggested buying some CFL (Compact Fluorescent Lamp). But I insisted on buying some LED (Light-Emitting Diodes). An argument was burst in our large relatives.

My brother stated that incandescent is the lowest priced one. & they had use incandescent for so lots of years. It is  nice. & the yellow light is much brighter in the foggy days. The most important thing was that they was used to living in the yellow light. & they felt warm in the yellow light.

I prepared the some useful information to persuade them to pick the LED light bulb. There are the professionals & cons of the LED light bulb.

My husband stated that efficient CFL is the best choice since it is not as pricey. It is brighter than the incandescent bulbs. & it saves more energy. There is no doubt that an LED equivalent light bulb (for example a 6w LED spotlight as a direct replacement for a 35w GU10 halogen lamp) is significantly more pricey than either the original or a CFL alternative. & the cost of LED light bulb ranges $20-$120, depending on the company & product.

It is brighter than that of CFL or incandescent bulb. It emits light of an intended color without the use of color filters. It lights up very quickly. Unlike the CFL which need one or six seconds to light up. LED bulbs generate little heat, which mean it stay cooler than other light bulbs.

Pros of LED Light Bulb

It contains no mercury, unlike CFL. There is no UV, infrared or other deleterious output. For the equivalent of a 60 watt bulb, LED makes use of an average of 5-7 watts compared to 13-15 watts CFL, & 60 watts incandescent.

It lasts up to 10 times longer than some advertise 60,000 hours. It lasts 35,000 to 50, 000 hours of useful life. Cent tubes are usually are rated at about 10,000 to 15,000 hours. Depending partly on the conditions of use, incandescent light bulb lasts about 1,000 to 2,000 hours. Because of its long life span, LED is used on trucks tail lights, & other lighting for safety proposes.

Cons of LED Light Bulb

LED are more long lasting than incandescent or fluorescent lighting. The LED light bulb features excellent shock resistance. It is hard to damage during the delivery.

    LED light bulb is not cheap. It is economical to buy LED bulbs even if other light bulbs are free. If a LED bulb cost $50 dollars. It is still cheap to buy the $50 dollars LED bulb because LED will save you more money on your utility cost over the long haul. But I found some LED light bulbs here are  cheaper than you thought.

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