PWM driver for Cree CXA3700?

I am planning on building a LED grow light based on this thread (DiY LED Grow Lights with CREE CXA3070 COBs and CPU Coolers | Rollitup) but I want to use an arduino to control light dimming. I have used the Meanwell LDD drivers before (http://www.rapidled.com/mean-well-ldd-1000hw-dimmable-driver/) and thought about trying to use the 1.5A version but it only goes up to 30v. I am looking for around 1.4A and up to around 42v. Can anyone suggest a good driver for this?