Fotodiox JDD Type 250w 110v E26/E27 (Standard Edison Screw) Frosted Halogen Light Bulb, Universal Replacement Modeling Bulb for Photo Studio Strobe Lighting 250 watt / 110 volt Halogen Modeling Bulb for Studio Strobes Tungsten ~3200K Color Balance E26 Edison Screw Household Base Average ~2,000hr Life Span Suitable for all standard E26/E27 screw studio lamp modelling 250w bulbs