My collection of Mercury Vapor light bulbs. All are 100 watts.
From left to right: Phillips Clear Mercury Vapor lamp, Phillips Deluxe White, General Electric Mercury Lamp, and Sylvania 100-watt Mercury Vapor lamp.
My collection of High Pressure Sodium and Metal Halide light bulbs
From left to right: Phillips 70-watt High Pressure Sodium lamp, General Electric 150-watt High Pressure Sodium lamp, Phillips 250-watt High Pressure Sodium lamp, and Sylvania 175-watt Metal Halide lamp.
