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About Brightness and Light Appearance
Find the right lumen level to brighten your space. Then, compare the way warm, neutral, and cool lighting affect the appearance of everyday objects.
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" | 2286K51 | 000000 |
| 120V AC/120V DC | 500W | Neutral (3,200K) | 13,000 | Base Down, Horizontal | BTM | Halogen | T6 | Clear | 100 | 60.22 | 3/4" | 5" | 2286K52 | 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" | 2286K55 | 00000 |

























