Dual arc bulbs

[Growdude]

Anyone have any experience with these, I like the look of the spectrum.
I've been wanting to add more blue as well as the uvb.

 

[4u2sm0ke]

I just purchased one for the Tent...First time Ive see HPS and MH in same bulb...I was gonna add some Blue cfl in tent to add more blue...Then I seen these I have not got set up yet but will soon...I tried to make one myself with a 1Khps and a 250MH in cool tube...But the MH kept blowing out..

:48:

 

[pcduck]

They work great
Not sure if they are worth the extra cost