1. Resistors
   • R1 (2M, 1/2W)
   • R2 (820K, 1/2W)
2. Integrated circuit
   • IC1(741)
3. Relay
   • RL1 (9V/ 300 ohms)
4. Capacitor
   • C1 (10uf / 16V)
5. Miscellaneous
   • Push to on switch (S1, S2)
   • Bulb( 9V/ 40mA)
   • PCB or Breadboard
   • Battery 9V
   • Flexible Wire

This is also a push-to-on, and auto-OFF circuit. User needs to push the button only ones to turn the light on, the light will turn automatically OFF after some time since the switching OFF mechanism is timer based. Also note that the "push to on" switch is used here, this should be momentarily pushed to turn the light on.

When the button is pushed, relay gets triggered and charges capacitor C1. After release, the capacitor starts discharging through resistor R1. Since the R1 is of large value, C1 takes some time to get discharge. After C1's discharge relays turns off automatically. Different value of C1 and R1 can be used to change the on-timing of the circuit. Good thing about this circuit is that, the circuit doesn't consume any power when it is not being used. This saves energy and increases battery life.