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Bi-Pin Base Miniature Light Bulbs

A
These bulbs are small, but very bright, so they're often used in flashlights and optical instruments such as projectors and microscopes. Brightness is measured in lumens; the higher the lumens, the brighter the bulb.
Halogen bulbs are slightly more energy efficient than incandescent bulbs, but they generate more heat.
Bulb Trade Number | Voltage | Wattage | Brightness, lumens | Current | Light Technology | Bulb Material | Color | Rated Life, hrs. | Bulb Dia. | O'all Lg. | Bulb Shape No. | Pkg. Qty. | Pkg. | ||
A | 778 | 6V AC/6V DC | 20W | 400 | 3.33A | Halogen | Glass | Clear | 100 | 0.37" | 1.24" | T2 3/4 | 1 | 0000000 | 00000 |