Yes, it can but very dim
Can A Lemon Power Up A Light Bulb?
Yes it can and it saves the planet also your electricity bill will be very low for those who pay a lot will save big!!!!!!
Depends on how much citric acid you have. A big amount will work but not for very long or not strong enough. A small amount most times won't even work !
I really do not know but I,m going to find out