I had a quick question about MH ballasts and bulbs. Say you have a 250W ballast for a DE HQI fixture. Can I put in lower-wattage DE HQI bulbs, up to 250W? For instance, a 150W DE HQI bulb?
Like when you have a reading lamp: you can use 20W, 40W, 60W, even 75W in it. Is the same true of DE HQI sockets? TIA, Karl