Before question was revised with schematic image. [![enter image description here][1]][1][![enter image description here][2]][2] After - You also did not specify how bright they have to be nor if the green was GaP green which are 2V LEDs but here at 1% of the full intensity on 1.5V, this works. [![enter image description here][3]][3] [![enter image description here][4]][4] [1]: https://i.sstatic.net/R9liB.png [2]: https://i.sstatic.net/RpFQ6.png [3]: https://i.sstatic.net/DjiYW.png [4]: https://i.sstatic.net/wcjaI.png