Photo Studio lamp. 300watts. 3200k Quartz Halogen Bulb W/E-27 Screw in Adapter Socket. 300 Watts 3200 Kelvin 2 Pin type quartz halogen bulb and an adapter to use on ceramic E-27 lamp socket The halogen bulb can deliver more consistent light than the tungsten filament type bulb. But much hotter. HANDLE WITH CARE Use this kit on ceramic type lamp sockets only. Other type of lamp sockets may not withstand the heat from the bulb and it may cause a fire hazard or short circuit. Make sure that the lamp socket switch and cable is rated for the lamp voltage and wattage. ALWAYS HANDLE THE KIT WITH THE POWER OFF! NEVER HANDLE THE QUARTZ HALOGEN BULB WITH BARE FINGERS AS IT WILL DAMAGE THE QUARTZ TUBE. SKU RPS-RS-3991A Yes, we combine orders whenever possible. If does not combine the shipping on your orders correctly; when we combine he items and check the shipping; if it is less than the shipping charges that you paid; we will issue you a refund for the difference.