How to make emergency light at home || emergency light repairing#💡ऐसे किसी ने नहीं सिखाया होगा#

How to make emergency light at home || emergency light repairing#💡ऐसे किसी ने नहीं सिखाया होगा#
Creating an emergency light involves basic electrical components. You'll need a rechargeable battery, an LED, a resistor, a switch, and a casing. Follow these steps:
1. *Gather Components:*
Rechargeable battery (e.g., 3.7V Li-ion)
LED (preferably high-intensity)
Resistor (to limit current to the LED)
Switch (to turn the light on/off)
Casing (protective housing for components)
2. *Circuit Setup:*
Connect the positive terminal of the battery to one terminal of the switch.
Connect the other switch terminal to the longer (positive) leg of the LED through the resistor.
Connect the shorter (negative) leg of the LED to the negative terminal of the battery.
3. *Resistor Calculation:*
Calculate the resistor value using Ohm's Law: \( R = \frac{{V_{\text{{source}}} - V_{\text{{LED}}}}}{{I_{\text{{LED}}}}} \), where \( V_{\text{{source}}} \) is the battery voltage, \( V_{\text{{LED}}} \) is the LED voltage drop, and \( I_{\text{{LED}}} \) is the LED current.
4. *Assembly:*
Place the components inside the casing, ensuring a secure and compact arrangement.
Make sure the switch is easily accessible.
5. *Testing:*
Turn on the switch and check if the LED illuminates.
If the brightness is too high or low, adjust the resistor value.
6. *Charging:*
If using a rechargeable battery, incorporate a charging circuit or a separate charging port.
7. *Safety Precautions:*
Ensure proper insulation to prevent short circuits.
Follow safety guidelines for working with batteries.
8. *Finalization:*
Seal the casing securely and make the emergency light portable and easy to carry.
Always prioritize safety and follow electrical standards. If you're unsure, consult with someone experienced in electronics or seek professional advice.
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