Emergency LED Lights. Powerful & Cheep Circuit LED-716 Emergency Light Schematic Diagram
LED-716 is one of the most powerful and very cheep circuit. You can try to make one at home.
Recommended for beginners:
Click image to enlarge.
DATA for Emergency LED Lights:
- D1 to D5 = IN4007
- Q1 = C945 NPN
- Q2 = D965 NPN
- C1 = CL-155J, 250 V.
- C2 = 100μF, 16 V.
- C3 = 1μF, 50 V.
- R1 = 1Ω
- R2 = 3Ω
- R4 = 5.1Ω
- R3 and R5 = 1kΩ
- R6 = 390kΩ.
- Battery = 1300-1600mAh.
- LED = 30 Num, color = White.
INPUT to Emergency LED Lights:
- 90-240 V, AC.
- 50-60 Hz
- Cable = 3A,250V.
OUTPUT of the Emergency LED Lights:
- Current = 0.1 A.
- Power = 1 Watt.
3-Option switch or Pattern change
- Option 1 = Full Light
- Option 2 = OFF
- Option 3 = Normal Light
Backup Time of the Emergency Light lamp.
Battery backup time of the emergency LED light Circuit
At Option 1 ( Full light) = 4-6 Hrs
At Option 2 ( Normal Light) 10 Hrs
Here is the full story that how did i make this post and share with you guys.
Actually, someone bring me a DP-716 Emergency LED Light lamp. So I took the lamp (for checking/repairing).
Here you can see the whole story in images.
Here, we have opened it for repairing. ( You can also try on such your home appliances, but keep in mind that safety is more important….)
(click images to enlarge)
Now it is clear that what is the real problem in pic ( two resistor were blown out) so now we want to fix it.
Here you can see that what i did in this circuit. because the resistor on the back side ( which i have soldered) was blown out. so the root of problem was that specific resistor.we have done the job. Now the pattern change switch is on Option 1 i.e. on Full light. the back up time will be 4-6 hours.And in this case, the pattern change switch is on Option 3 i.e on Full light. the back up time will be 8-10 hours. also note that , option 2 is for turning off the Bulb light.
- By : Electrical Technology
- Updated by: Respected Jean DAVID