Two Photoflood Options for Studio Lighting
When you need continuous tungsten light for still life, portraiture, or video, a photoflood lamp is a straightforward choice. Firstcall Photographic stocks two popular options: the P2/1 and the P1/1. They differ in wattage, base type, and the studio heads they fit. This comparison helps you pick the right one without guessing.
Key Differences at a Glance
- Wattage and light output: The P2/1 is a 500W lamp; the P1/1 is a 275W lamp. The higher wattage produces more light, but also more heat and power draw.
- Base type: The P2/1 uses an Edison screw (ES) base. The P1/1 uses a bayonet cap (BC) base. They are not interchangeable without an adapter.
- Compatible studio heads: The P2/1 fits Interfit INT100, INT114, INT140 heads (as used in the INT089 kit) and the Paterson RayD8 C. The P1/1 is compatible with Firstcall Photographic studio equipment.
- Voltage: Both lamps are rated at 240V. They are intended for mains-powered studio fixtures, not battery packs.
P2/1 ES Screw Photoflood Lamp (500W)
- Lamps P2/1 ES Screw Photoflood lamp - 240V 500W: An Edison screw 500W 240V Photoflood Bulb for studio lighting. The ES base means it fits screw-type sockets common in many studio heads. The 500W rating gives a bright output suitable for key or fill lighting.
Lamps P2/1 ES Screw Photoflood lamp - 240V 500W - Lamps P2/1 ES Screw Photoflood lamp - 240V 500W: For Interfit INT100, INT114, INT140 heads as used in the INT089 kit, as well as for the Paterson RayD8 C. If you own one of these specific heads, this lamp is a direct replacement. Check your head model before buying.
P1/1 BC Bayonet Photoflood Lamp (275W)
- Lamps P1/1 BC Bayonet Photoflood lamp - 240v 275w: Rated at 240 volts and 275 watts for standard studio lighting needs. The lower wattage produces less heat and draws less power, which can be useful for continuous lighting over longer sessions or where 500W is too bright.
Lamps P1/1 BC Bayonet Photoflood lamp - 240v 275w - Lamps P1/1 BC Bayonet Photoflood lamp - 240v 275w: Features a BC (Bayonet Cap) base for secure and easy installation. Bayonet bases lock into place with a push and twist, reducing the chance of loosening from vibration. Make sure your fixture accepts BC lamps.
Which One Should You Choose?
Your choice depends on the base type your studio head requires and the light output you need. If your head uses an Edison screw socket and you want maximum brightness, the P2/1 500W is the pick. If your fixture takes a bayonet cap and you prefer a lower-wattage lamp that runs cooler, the P1/1 275W is a solid option. Both are 240V only, so verify your mains voltage before use.
