What do I need for greenhouse Lighting

[Sunking]

I have a good multi meter and could measure Amps when things are up and running.

OK but many multi-meters have very limited current measuring capabilities. One that do usually have a limit of 10 amps. Do you know how to set up the meter to measure current? It requires taking one lead from the battery off, and put your meter in series. If th einverter uses more current than your meter is capable of can damage your meter.

[Clifford]

yes your right it is limited to 10a my bad but I could have made some neat sparks

[Sunking]

yes your right it is limited to 10a my bad but I could have made some neat sparks

OK try this as it will work. Set your meter up to measure current, turn on inverter and one set of lights and see what you get. If you see OL displayed on the meter shut down immediately. With one set of lights on you should see about 3 amps.

[Clifford]

I see the Morningstar mppt controllers are about 430.00 is this controller any good?
40A MPPT Solar Battery Regulator 100V 12/24 VDC
it is on ebay at this location

http://www.ebay.com/itm/40A-MPPT-Solar-Battery-Regulator-100V-12-24-VDC-Charge-Controller-W-Meter-MT-5-/121067604100

[russ]

I see the Morningstar mppt controllers are about 430.00 is this controller any good?
40A MPPT Solar Battery Regulator 100V 12/24 VDC
it is on ebay at this location
http://www.ebay.com/itm/40A-MPPT-Sol...-/121067604100

A no name Chinese MPPT unit? If you are lucky it may function or on the other hand it may be useful only as a boat anchor.

Do not buy anything off ebay unless you can check the unit out elsewhere.

[FloridaSun]

I see the Morningstar mppt controllers are about 430.00 is this controller any good?
40A MPPT Solar Battery Regulator 100V 12/24 VDC
it is on ebay at this location
http://www.ebay.com/itm/40A-MPPT-Sol...-/121067604100

Morningstar 45MPPT = very good
ebay 40A-MPPT-Solar-Battery-Regulator = bad

Go with the TriStar MPPT. You get a MUCH better product for the money. Metal case with knock outs instead of a thin plastic case, remote battery temp sensor, better cooling, 100% humidity rating, more flexibility in settings,etc etc etc. Just download manuals for each and look at the difference.