Upload & Sell: Off
If you are going to do products, you need strobes with modelling lights, so you can preview the highlights and shadows. For small products 3 low powered ones should be plenty. One of the best and most cost effective methods is to bounce your strobes off white surfaces. You probably have all the white surfaces already: a white ceiling, and some white mat board. A few light stands and clamps for your cards pretty much complete the list. One of the most challenging issues is casting the card reflections onto black surfaces so they don't die. You need look no further for an example than the illustrations of the black Yonguo receivers in this thread. Beautiful reflections were cast on the various surfaces to create separation, smooth highlights, a pleasing lighting ratio and drama. With the modelling lights, you see it, shoot it, and move on. Without them. you guess, shoot, guess again & shoot again. Not as much fun.