I don't have fancy tools for measuring light output so I set up the ROV and my Malkoff Mag on my TV, turned them on, set my camera between them and had it take a snapshot every 10 mins for 10 hours.
The whole flash file is here if you want to see the whole thing.
Download ROVExtremeMalkoff.swf
But here are some pictures from the first shot, 1 hour, 3, hours, 5 hours, 7 hours and the 10th hour. ROV on the left Malkoff on the right.






In a nutshell the ROV starts off less bright than the Malkoff, not by much but definatley less bright. After 7 hours the Malkoff dims and the ROV stays bright! After 10 hours the ROV had still lost very little light compared to the Malkoff. Not bad for 25 bucks.
I noticed on the back of the package in small type it says this.

I don't know what kind of regulation this does or doesnt have but it's a good light either way. They are both still going like in the last photo and probably will for days. It's 16 hours after they started now and ROV is still brighter.
I think the advantage that the ROV has is the focusing lens that grabs all the light and keeps it all in the spot. Even now the Malkoff has brighter spill aroun the spot than the ROV.
But if your looking for a spot that's bright and cheap and easy to get the ROV Extreme is sweet.
The whole flash file is here if you want to see the whole thing.
Download ROVExtremeMalkoff.swf
But here are some pictures from the first shot, 1 hour, 3, hours, 5 hours, 7 hours and the 10th hour. ROV on the left Malkoff on the right.






In a nutshell the ROV starts off less bright than the Malkoff, not by much but definatley less bright. After 7 hours the Malkoff dims and the ROV stays bright! After 10 hours the ROV had still lost very little light compared to the Malkoff. Not bad for 25 bucks.
I noticed on the back of the package in small type it says this.

I don't know what kind of regulation this does or doesnt have but it's a good light either way. They are both still going like in the last photo and probably will for days. It's 16 hours after they started now and ROV is still brighter.
I think the advantage that the ROV has is the focusing lens that grabs all the light and keeps it all in the spot. Even now the Malkoff has brighter spill aroun the spot than the ROV.
But if your looking for a spot that's bright and cheap and easy to get the ROV Extreme is sweet.