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.
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 burn out quickly (sometimes, due to halides, it can also explode).
Also an lower wattage ballast can damage your bulb.
No, you can not use a 70 watt hps bulb in a 100 watt ballast fixture.
No, the ballast must match the lamp wattage.
No, the HPS bulb needs a ballast to operate. The ballast raises the voltage so that the bulb can strike an arc to start.
No, the lamp has to match the ballast.
No. A 70 Watt metal halide bulb can not be replaced with a 150 Watt halide bulb.
Yes assuming the ballast is also for a metal halide lamp.
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.
It depends......perhaps 7400 to 8500 initial lumens degrading to 5400 lumens.
No. A 70 Watt metal halide bulb can not be replaced with a 150 Watt halide bulb.
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.
The light bulb needs to match the ballast in the fixture.
Yes assuming the ballast is also for a metal halide lamp.
6000lm
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.
It depends......perhaps 7400 to 8500 initial lumens degrading to 5400 lumens.
No, the ballast's output is not matched to operate a fluorescent bulb.
I actually have a 400w hps ballast and I can also use my 400w metal halide bulb in it with no problem. So what your saying is they do, but they dont? the answer is, they dont. You can get universal bulbs hps to plug into a mh ballast they have a miniturized igniter inside the bulb. As I understand it, a 400W metal halide bulb can be used with a 400W hps ballast, but not the converse. A MH bulb has the igniter in the bulb, and the HPS has it in the ballast--which pretty much goes along with your comment above. Apparently the double presence of the igniter in the HPS setup is OK.you can run metal halide in same wattage's but not hps in metal halide systems.you can run such as (same wattage's)250 watt metal halide-400 watt halide ect in hps systems but not hps bulbs in halide systems. they make conversion bulbs to run halide in hps as well and vice versa.
Yes, the ballast is an intricate part of the fixture that the lamp screws into regardless of what size wattage the lamp is.
At the basic level, you're looking at: * Circuit Protection (fuse or circuit breaker) * Cabling * Mounting hardware (for the light fixture itself) * Within the fixture; A socket, bulb, bulb protection (cover, or sheild)