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Ballast 250W Popular Q&A
Q: Can you use a 150w hps in a 250w ballast?
A: No, you have to use an 150W ballast. Ballast act as current limiting device, so if you run 150W bulb in an 250W ballast, the bulb will be overloaded and will bu... Read More »
Q: What will happen if a 250w metal halide lamp is used in a 400w ba...
A: You should be fine. Read More »
Q: Can I use a 250w mh bulb with a 400w ballast?
A: it would need to be a conversion ballast i wouldnt do it just get the right bulb theyll veg alot better with more light anyway Read More »
Q: Can you use a 250w hps bulb in a 400w ballast?
A: No you can't, and don't try since it may explode and start a fire. Read More »
Q: If i have a 250w or 400w high pressure sodium lamp ballast, can i...
A: You need to match the ballast to the bulb. If you use a smaller bulb, you will burn it out. If you use a larger bulb, it won't start reliably. See the link for ... Read More »