Thanks, guys. I'll try to order two 12v led lamps from ebay.hk
Just one more thing (really the last one)
This guy, who had installed led lamps in his Ryga - "romka" - maybe someone could please translate, why he installed led lamps, but latter used lamps with aa batteries from bicycle? Is there something wrong with led lamps ? That would be a huge help (google translate was no help)
Thanks in advance.