The essential bulb six-pack for anyone looking to harness the warmth of tungsten lighting. These powerful lamps provides 150-watts each of Tungsten Halogen power (6 pack = 900 total watts) and are designed to fit into any Edison base light head, including Westcott's Spiderlite TD series. Perfect for high-def video or digital photography, this lamp offers a high output and excellent color at 2800 degrees Kelvin. Unlike other halogen bulbs that cannot be handled with bare hands, these lamps are designed with a double-glass bulb, protecting the halogen center from oils and allowing for safe handling (allow to cool prior to handling).