No, a fluorescent bulb does not emit the same amount of heat as a metal halide bulb of the same wattage.
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.
No, the ballast's output is not matched to operate a fluorescent bulb.
Make sure you are using a metal halide bulb and the ballast is matched to the wattage on the bulb. These both must be correct.
No you can't. You can use a metal halide lamp of the exact wattage of the original mercury lamp. You cannot vary on wattage at all.
Incandescent, fluorescent LED, metal halide, halogen, HID (high intensity discharge), etc.
There really are no advantages of an ED28 over an ED37. If they are both metal halide lamps then the only difference between them, provided they have the same wattage and color temperature, is that they have different dimensions and different size bases. They will require different size sockets and will likely require different ballasts.
Yes, the ballast is an intricate part of the fixture that the lamp screws into regardless of what size wattage the lamp is.
Common table salt NaCl is a metal halide.
Between Metal Halide and Mercury Vapor the higher output is emitted from the Metal Halide lamp.
An HQI metal halide lamp belongs to the family of metal halide HID lamps. Hydrargyum quartz iodide (HQI) lamps differ from standard metal halide lamps in that they are often smaller and are offered in double ended versions and require a special socket. The gasses and metal halide salts used in HQI and standard metal halide lamps are the same.
It uses more power (watts) than before, it produces more heat, and also more light.
No. A 70 Watt metal halide bulb can not be replaced with a 150 Watt halide bulb.