It will power two 400 watt lamps.
No, the ballast has to be matched to the lamp. 250 watt ballast, 250 watt lamp. Also be sure to match the lamp type to the proper ballast even though the wattage is the same. HPS ballast to HPS lamp, Metal halide ballast to metal halide lamp and mercury vapour lamp to mercury vapour ballast.
400w is the power 110 is the voltage. Is your light using 110v already or 220v? Believe you are already running at 110 and u don't understand electrical terms. Perhaps you should call an electrician
That will vary on the manufacture and quality of the bulb. There is no set amount of lumens for a 40 watt halogen or any kind of bulb for that matter. To find out the lumen output you need to look at the box it came in as it should be stated. If you don't have the box it may be tricky to find out. You will have to see if you can find the manufacture somewhere on the bulb then google it and check the specs. It's probably safe to say its going to be around 500 lumens on average.
Watt?
6000lm
No. A 70 Watt metal halide bulb can not be replaced with a 150 Watt halide bulb.
It will power two 400 watt lamps.
Yes assuming the ballast is also for a metal halide lamp.
No, the ballast has to be matched to the lamp. 250 watt ballast, 250 watt lamp. Also be sure to match the lamp type to the proper ballast even though the wattage is the same. HPS ballast to HPS lamp, Metal halide ballast to metal halide lamp and mercury vapour lamp to mercury vapour ballast.
It depends......perhaps 7400 to 8500 initial lumens degrading to 5400 lumens.
400 watt metal halide fixtures can be purchased at various sites on the internet. Some sites that you may want to try out include the following: Amazon and Home Depot.
The light bulb needs to match the ballast in the fixture.
Yes.
25
No, the ballast's output is not matched to operate a fluorescent bulb.
Yes U can just make sure they are the same size (watts) and base configuration (R59) or so.