Description/Features: your V1 flash units are operating at their best with this original replacement mainboard. Compatible with various models including V1C, V1N, V1S, V1F, V1O, and V1P, this PCB driver board is perfect for repairing or refurbishing your speedlight. Easy to install and designed to restore full functionality to your photography equipment. Specifications: Color: Green Material: PCB Due to different batches, there may be differences in product appearance and printed text, which will not affect use Package Contents: 1 x Flash Mainboard Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.