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DFARS Specialty Metals
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Prefocus Base Miniature Light Bulbs
These bulbs are sized to fit tight spaces such as signs, instruments, indicators, and flashlights. Brightness is measured in lumens; the higher the lumens, the brighter the bulb.
| Bulb Trade Number | Voltage | Wattage | Brightness, lumens | Current | Operating Position | Light Technology | Bulb Material | Color | Rated Life | Bulb Dia. | O'all Lg. | Bulb Shape No. | Each | |
Double-Contact—Candelabra Base (0.59" Dia.) | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Tapered Bulb | ||||||||||||||
| 1460 | 6.5V AC/6.5V DC | 17.9W | 289 | 2.75A | Horizontal | Incand. | Glass | Clear | Not Rated | 1" | 2" | S8 | 0000000 | 000000 |
| 1460X | 6.5V AC/6.5V DC | 17.9W | 289 | 2.75A | Horizontal | Incand. | Glass | Clear | Not Rated | 1" | 2" | S8 | 0000000 | 00000 |
| 1630 | 6.5V AC/6.5V DC | 17.9W | 289 | 2.75A | Horizontal | Incand. | Glass | Clear | Not Rated | 1" | 2" | S8 | 0000000 | 0000 |
| 1631X | 6.5V AC/6.5V DC | 17.9W | 289 | 2.75A | Horizontal | Incand. | Glass | Clear | Not Rated | 1" | 2" | S8 | 0000000 | 0000 |
| 1634 | 20V AC/20V DC | 20W | 302 | 1A | Horizontal | Incand. | Glass | Clear | Not Rated | 1" | 2" | S8 | 00000000 | 0000 |
Prefocus Base Light Bulbs
Small but powerful, these bulbs are commonly used in stage and security lighting. All have a neutral light appearance that is brighter than warm light. A bulb’s estimated yearly energy cost is based on 3 hours of usage per day at $0.11 per kWh. These halogen bulbs are slightly more energy efficient than incandescent bulbs, but they generate more heat.
| Voltage | Wattage | Light Appearance | Brightness, lumens | Operating Position | Bulb Trade Number | Light Technology | Bulb Shape No. | Color | Rated Life, hrs. | Est. Yearly Energy Cost, $ | Bulb Dia. | O'all Lg. | Each | |
Single Contact—Medium Base (1 1/8" Dia.) | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Pointed Bulb | ||||||||||||||
| 120V AC/120V DC | 500W | Neutral (3,050K) | 11,000 | Base Down, Horizontal | BTL | Halogen | T6 | Clear | 500 | 60.22 | 3/4" | 5" | 0000000 | 000000 |
| 120V AC/120V DC | 500W | Neutral (3,200K) | 13,000 | Base Down, Horizontal | BTM | Halogen | T6 | Clear | 100 | 60.22 | 3/4" | 5" | 0000000 | 00000 |
| 120V AC/120V DC | 1,000W | Neutral (3,200K) | 28,500 | Base Down, Horizontal | BTR | Halogen | T7 | Clear | 250 | 120.45 | 7/8" | 5" | 0000000 | 00000 |