If you have a dimmable ballast, must you replace the bulb (wattage) its rated for before you use the dimmer? I.e., If you have a 400 watt hps bulb and wished to dim it to 250 watts, must you use a 250 watt bulb?
If you have a dimmable ballast, must you replace the bulb (wattage) its rated for before you use the dimmer? I.e., If you have a 400 watt hps bulb and wished to dim it to 250 watts, must you use a 250 watt bulb?
Farmer Geddon (02-11-21), GEORGE (01-11-21), Mac (02-11-21)
Nah, you can get lamps that can be dimmed. I used to use a 600w metal halide and dim it to 250w.
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Farmer Geddon (02-11-21), GEORGE (01-11-21), Mac (02-11-21), mpsj (01-11-21), twalte (01-11-21)
Farmer Geddon (02-11-21), GEORGE (01-11-21), Loki (01-11-21), Mac (02-11-21)
Farmer Geddon (02-11-21), GEORGE (01-11-21), Mac (02-11-21), mpsj (02-11-21)
Bulb manufacturers seem happy for a 600w bulb to be dimmed to 400w... but they reckon to dim to 250w, either use a 400w or 250w bulb. They don't say why but I epect spectrum shift (as Loki says above)
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Farmer Geddon (02-11-21), GEORGE (02-11-21), Loki (02-11-21), Mac (02-11-21), mpsj (02-11-21)
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