Two Channel LED driver?

I was interested in building up a light that uses 365nm LEDs and 255nm LEDs in the same body. Is there a driver available that can control two separate LEDs? Both LEDs have a Vf of 6V or so and 700mA current. I’d be fine with simple on-off for each head but since there are so many fancy tint ramping lights around I thought there may be a chance that a driver that can ramp between these two distinct LEDs may be available.