DP-716 Emergency LED Light Circuit – Rechargeable 30‑LED Schematic & Build Guide

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:

• 230 V 50Hz AC (or 110V 60Hz) Main Operated LED Powerful NIGHT LAMP Circuit Diagram)

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:

Battery Charging

• 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

• Option 1 ( Full light) = 4-6 Hrs.
• 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)

 

 

Inside Emergency LED Lights.  LED-716 Emergency Light.

Now it is clear that what is the real problem in pic ( two resistor were blown out) so now we want to fix it.

Recommended: How to Find the value of burnt resistor . By three methods

another view. check the circuit that what is the problem here.

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