the 35 watt lamp will work in a 40 watt ballast.
Should be fine as long as the ballast is compatible with the 20 W lamp.
It will work, a 40 w bulb is a little brighter than a 34 w and it takes a little more electric power.
No
No, the ballast's output is not matched to operate a fluorescent bulb.
Not recommended. It would work but shorten lamp life and may cause risk of fire. However, if you just wanted to check a lamp was capable of striking it would be ok for a few minutes. I've done the opposite in the past and used a 150w lamp with a 100w ballast. Works, but not good for any of the components, including lamp.
To answer this question the voltage of the ballast must be stated and the type of lamp in the fixture.
No. The bulb has to match the ballast wattage exactly. And you can't interchange different lamps (like metal halide) either. The ballast is specific to that wattage and lamp type. The bulb will either burn out quickly or just not work properly at all
Yes.
If the 250 watt bulb is a HID or similar type the ballast comes complete with the fixture. The bulb socket is also part of the fixture and comes pre-wired to the socket. To connect the bulb to the fixture all that has to be done is just screw it into the fixture's socket.
The light bulb needs to match the ballast in the fixture.
No, the ballast's output is not matched to operate a fluorescent bulb.
No, you can not use a 150 watt high pressure sodium bulb with a 70 watt ballast.
Look at the wattage capacity of the fixture. Some fixtures are limited to 65 watts, some can take much more. If you use a larger bulb than what the fixture was designed for you create a fire risk. If you need to use a larger bulb but the fixture is limited to 65 watts, you need to change the fixture.
no you cant if the ballast is for a 150w bulb you have to retro fit the ballast then u can
Not recommended. It would work but shorten lamp life and may cause risk of fire. However, if you just wanted to check a lamp was capable of striking it would be ok for a few minutes. I've done the opposite in the past and used a 150w lamp with a 100w ballast. Works, but not good for any of the components, including lamp.
To answer this question the voltage of the ballast must be stated and the type of lamp in the fixture.
Yes.
No. The bulb has to match the ballast wattage exactly. And you can't interchange different lamps (like metal halide) either. The ballast is specific to that wattage and lamp type. The bulb will either burn out quickly or just not work properly at all
No problem. The main thing to be sure of when you change a bulb is that the new bulb is not too high a wattage than your lighting fixture was designed to handle, so it won't get over-heated.
Yes, provided the bulb types are compatible with the 400 watt ballast.