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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.
Lights for Ultra-High-Vacuum Flanged Sights

Illuminate the interior of your ultra-high-vacuum chamber to clearly observe what’s inside. These lights mount to the outside of CF flanged sights with three set screws. They’re shaped like a ring, allowing you to see into the chamber through the middle. Unlike a flashlight or gooseneck lamp, they won’t block or create glare on your viewing port.
| For High-Vacuum Flange Size | For Flange OD | For High Vacuum Connection Type | ID | Brightness, lumens | Light Appearance | Wattage | Voltage | Bulb Rated Life, hrs. | Housing Material | Electrical Connection Type | Mount Type | Mounting Hardware Included | Each | |
Built-In LED Bulbs | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 40 | 2 3/4" | CF | 1 1/8" | 33 | Neutral (4000K) | 17.4W | 120V AC | 30,000 | Anodized Aluminum | Three-Prong Plug | Set Screw | Yes | 3660N11 | 0000000 |
| 63 | 4 1/2" | CF | 2 13/32" | 67 | Neutral (4000K) | 17.4W | 120V AC | 30,000 | Anodized Aluminum | Three-Prong Plug | Set Screw | Yes | 3660N12 | 000000 |
| 100 | 6" | CF | 3 9/16" | 100 | Neutral (4000K) | 17.4W | 120V AC | 30,000 | Anodized Aluminum | Three-Prong Plug | Set Screw | Yes | 3660N13 | 000000 |

























