So I had 2 long/big standard-base light bulbs in my shop that burned out. They are standard incandescent. I would like to replace these with standard base LED bulbs that run cooler but provide more light. I have no idea what wattage these big bulbs were - text is worn off the bulbs. Does anyone have any idea what kinds of bulbs these may have been, and what I can replace them with in a LED variety -- about 4000K color temperature -- that will be bright enough to see well in my 18 x 18 shop?