This 75W modeling bulbs are widely used in compact strobe lights. | It compatible with for Godox K-180A, 250DI, 300Di, 250SDI, 300SDI, etc. | 110v light bulb is compatible with 120v; Can also be used for various brands camera flash with 180W, 250W, 300W etc. | Pin Type: 2 Pin G5.3 (5.3mm between prong centres). | Note: This lamp bulbs can NOT be used for household illumination, it is ONLY for Modelling Light Lamp for image creation.