Have to admit I acquired all excited over a light bulb. Well, to be more precise, I got all excited on the price of a light bulb. Acquired a few minutes to spare in addition to stopped at one of one of the best big-box home stores to pick up a tube of sealing. Strolling down the lights isle, the sale tags were catching my eye. Then, there it was - big green tag pronouncing 50 percent off and it was directing at a 7. 5 volt, LED light bulb. I just about dropped my caulk.