TROS “solar driver” II
The same existing TROS in disposable camera can run bunch of LEDs from 1.5v bttry. This time the circuit’s modified to use dc part of it. LEDs are those new 2W 120V LED clusters (equivalent 40W regular). But goal’s not to get light itself but get ability to run it for long time, so got one L-light to drive the solar panel which charging 5V 1F supercap connected in parallel with bttry. So, while one light is on, the another one charging the supercap and helping the bttry. When it needed (say, all night’s troubles are gone, lol) the solar panel can just restore charge of bttry in daytime in usual way.