Yes, for LEDs under 100 mA, an extra driver is not needed. The ckt is set for about 50% duty, I think something around 30-70% would be better & would require some changes- another pot & 2 diodes.
Sometime the battery question needs to be settled.
I ran a test on a light, a single bright red LED, " Ball, Quilted Crystal" 8 oz jelley jar, Al. conical reflector, 150Ω, & 4 AA NiMH cells. 360 deg viewing from 300 ft looker good to me.
Sometime the battery question needs to be settled.
I ran a test on a light, a single bright red LED, " Ball, Quilted Crystal" 8 oz jelley jar, Al. conical reflector, 150Ω, & 4 AA NiMH cells. 360 deg viewing from 300 ft looker good to me.