Turn Fast Dual Lighting Effect in Photoshop CC - Photoshop Tutorial. Dual Lighting is a popular effect for portraits, sometimes adding a whole new atmosphere to an otherwise simple photo. There are of course many ways to make this effect in Photoshop, but the one I'll show you here is so easy to make — all you need is a photograph (color or black & white, either will work) and 5 minutes of your time. Glowing lights Portrait Dual Lighting Effect Photoshop, photoshop Tutorial dual lightning, Glowing lights.