Neitz Illuminators NTZ-NSI X
Accurate observations using surgical loupes and other optics during ophthalmic practice depend on bright, clear, and reliable illumination to ensure ease of operation and patient care. With over a half-century of manufacturing the finest in medical optics, Neitz understands this need. That’s why they produce the award-winning NSI-X, an LED surgical loupe illuminator with industry-leading brightness and exceptional battery life.
*Made in Japan | ![]() |
The long battery life, exceptional brightness, and comfortable design of the NSI-X illuminator by Neitz make it a perfect companion for the BL surgical loupes by Neitz and a powerful tool for any clinic.


Illuminator Comparison

Illumination Usages


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llluminator | |
Light Source | White LED (Color Tone: Cool White) |
Illumination Field Diameter (at 400 mm distance) |
100 mm (100 mm type) or 80 mm (80 mm type) |
Dimensions (Main body) | Ø 0.9 in x 1.36 in ( Ø 23.0 mm x 34.6 mm ) |
Weight |
100 mm type: Approx. 18g (0.63 oz.) 80 mm type: Approx. 19g (0.67 oz.) |
Light Intensity (approximately) (at 400 mm distance) |
Low (Level 1)
100 mm type: 12,000 lx 80 mm type: 14,000 lx Medium (Level 2) 100 mm type: 19,000 lx 80 mm type: 22,000 lx High (Level 3) 100 mm type: 32,000 lx 80 mm type: 38,000 lx |
Light Color | White |
Illumination Cord Lenght | 66.93 in (1.7 m) |
Battery Pack | |
Dimensions (excluding protrusions) |
3.48 (H ) in x 2.68 in (W) x O .87 in (D ) (88.5 mm x 68 mm x 22 mm) |
Weight (excluding batteries) | 170 g (6.0 oz.) |
Illumination Level | 3 levels (Low/Medium/High) |
Operation Time (approximately) |
13.5 hours at Low (Level 1) Operation Time (approximately) 7. 5 hours at Medium (Level 2) 3.5 hours at High (Level 3) |
Built-in Rechargeable Battery | Nickel-Metal Hydride (Ni-MH) battery (AA size, 4 pcs.) |
Output Voltage | DC 3V, 2 VA |
Full Charging T ime | Approx. 2.5 hours |
AC Adaptor | |
Input Power | AC 100 V to 240 V, 47 Hz to 63 Hz, 0.25A to 0.5A |
Output Power | DC 9 V, 2.3 A Double Insulation Type (or its equivalent) |
Cable Length | 48 in (1200 mm) |
Extension DC Cable | |
Cable Length | 79 in (2000 mm) |
llluminator | |
Light Source | White LED (Color Tone: Cool White) |
Illumination Field Diameter (at 400 mm distance) |
100 mm (100 mm type) or 80 mm (80 mm type) |
Dimensions (Main body) | Ø 0.9 in x 1.36 in ( Ø 23.0 mm x 34.6 mm ) |
Weight |
100 mm type: Approx. 18g (0.63 oz.) 80 mm type: Approx. 19g (0.67 oz.) |
Light Intensity (approximately) (at 400 mm distance) |
Low (Level 1)
100 mm type: 12,000 lx 80 mm type: 14,000 lx Medium (Level 2) 100 mm type: 19,000 lx 80 mm type: 22,000 lx High (Level 3) 100 mm type: 32,000 lx 80 mm type: 38,000 lx |
Light Color | White |
Illumination Cord Lenght | 66.93 in (1.7 m) |
Battery Pack | |
Dimensions (excluding protrusions) |
3.48 (H ) in x 2.68 in (W) x O .87 in (D ) (88.5 mm x 68 mm x 22 mm) |
Weight (excluding batteries) | 170 g (6.0 oz.) |
Illumination Level | 3 levels (Low/Medium/High) |
Operation Time (approximately) |
13.5 hours at Low (Level 1) Operation Time (approximately) 7. 5 hours at Medium (Level 2) 3.5 hours at High (Level 3) |
Built-in Rechargeable Battery | Nickel-Metal Hydride (Ni-MH) battery (AA size, 4 pcs.) |
Output Voltage | DC 3V, 2 VA |
Full Charging T ime | Approx. 2.5 hours |
AC Adaptor | |
Input Power | AC 100 V to 240 V, 47 Hz to 63 Hz, 0.25A to 0.5A |
Output Power | DC 9 V, 2.3 A Double Insulation Type (or its equivalent) |
Cable Length | 48 in (1200 mm) |
Extension DC Cable | |
Cable Length | 79 in (2000 mm) |