My autos have just started flowering. Ive had,the same 150 hps bulb for about a good 2 years now. Think a brand new bulb would help me out?
Yes. Any HID light bulbs degrade and lose their oomph over time, and especially at two years. I make myself but new bulbs each year and often less time if I've got the $$. J
For sure, keep the old one as a back up often the sodium element thing goes black eventually starts to fade, but I doubt you will notice it, plants will tho even consider getting an extra 150 hps as they are cheap, and offer good lux. bang for buck, besides you only need it during bud..? good luck