In line current meter (ammeter) for LED arrays.... geek time!
Well, I stumbled across these dudes the other day.
Basically, you wire them in series with your dimmable LED arrays (one per driver).
They will give you an instant current readout. That way you know just how much current you're juicing your array with, at a glance. And, you get lots of geek points for having these really cool digital number thingys on your canopy.
It's not that critical to know your current level, but it's helpful if you ever have to dim your array, and then return it later to the light level you originally had it set to (assuming you don't always run your LEDs at 100%). It's often a bit tricky trying to get light levels back to that "sweet spot".
Here are a few that I checked out. They need a 6-24v DC input (ie, basically something you already have laying around extra that's 6-24v). This is just to light up the backlight and lcd screen.
Note the shipping prices on these. Some are free, some aren't. All come from China that I've found so far.
I think I'm going to try 3 of these dudes.
[Ebay Link Removed] 0-2A Green LCD Digital Ammeter Current AMP Meter - eBay (item 250759083635 end time Feb-16-11 00:25:32 PST)[/url]
[Ebay Link Removed] DC +/- 5A Blue LCD Digital AMP Panel Meter Ammeter - eBay (item 250599164625 end time Mar-12-11 19:58:29 PST)[/url]
[Ebay Link Removed] 5A Blue LCD Digital Ammeter AMP Meter No Need Shunt - eBay (item 170534985921 end time Feb-28-11 07:58:24 PST)[/url]