Your transistor is upside down. It might be destroyed.
It also needs a resistor in series with its base to limit the base current.
I wouldn't use a little BC337 to drive a 2,4V incandescent light bulb. The BC337 has a max peak current rating of only 1A.
An incandescent lightbulb draws 10 times its normal operating current when it is cold. Measure its resistance and calculate it. Then the BC337 will have a current of 2A when it is turned on and it might be destroyed.
I would use a little power transistor to drive the lightbulb.
hello dears
i want to make a timer that show time with 6LEDs and after 60second relay will be active. for better clearly see attachment.
for this circuit what can i do for make it?