Sometimes a subtle "glow" is more effective than a massive starburst. Use the brightness slider to find the sweet spot.
If you are running Photoshop CC 2015 on a Mac, Knoll Light Factory is the gold standard for adding realism, depth, and cinematic flair to your digital art. Why Knoll Light Factory?
💡 If you are working on a high-resolution retina display, make sure your GPU acceleration is turned on in Photoshop Preferences to ensure the flare preview remains smooth and responsive. If you'd like to dive deeper, let me know: