Xite Fluorescence Flashlight System
View fluorescence in the lab or the field! The Xite? Fluorescence Flashlight System includes single-wavelength fluorescence excitation flashlights available with any of the five wavelengths in the NIGHTSEA line, paired with matching barrier filter glasses for maximum viewing contrast. Genotyping your transgenic organisms, screening cell cultures, inspecting parts with fluorescent penetrants, finding fluorescing critters in the field, … the Xite line provides what you need.
Xite flashlights – 5 excitation wavelengths
Tightly focused for a high intensity illumination spot
Two power levels, plus unique flashing mode and battery status indication
Add-on diffuser for a broader, smoother beam
Each light paired with matching barrier filter glasses
Compact and lightweight
Rechargeable high capacity lithium ion battery
Xite flashlights Included with each system
Fluorescence excitation flashlight (your choice of one wavelength) with lanyard
Matching barrier filter glasses with microfiber case for storage and cleaning
Diffuser cap
High capacity lithium ion battery
Battery charger and USB charging cord
Instruction sheet
Padded foam shipping/carry/storage case
Xite flashlights Diffuser
Add-on 15° diffuser cap provides a wider, softer beam
| Xite light with push-on diffuser | Xite illumination spot, no diffuser | Xite illumination spot, with diffuser |
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Flashing mode for enhanced detection in ambient light
As bright as fluorescence may appear when you use an intense light source to view it in conditions of darkness, in most cases it actually tends to be a relatively weak effect that is easily masked by other light. If you try to find fluorescence when there is moderate ambient light (room light, sunlight, …), any fluorescing subject will respond to the excitation, but the response may be too weak to notice easily.
But there’s a trick – by making the excitation light source blink repetitively (a strobe effect), any fluorescence will blink at the same rate, while the illuminated background will not. This flickering increases the apparent contrast and thus increases detectability.
Xite-RB and glasses with a fluorescent mineral
Xite flashlights Available wavelengths
Wavelength sets are named and color coded for the color of the excitation light, not the color of the emitted fluorescence.
| Designation | Excitation | Barrier Filter Glasses |
| UV – Ultraviolet | 360 – 380nm | 415nm longpass |
| VI – Violet | 400 – 415nm | 450nm longpass |
| RB – Royal Blue | 440 – 460nm | 500nm longpass |
| RB-GO – Royal Blue, Green Only | 440 – 460nm | 500 – 560nm bandpass |
| CY – Cyan | 490 – 515nm | 550nm longpass |
| GR – Green | 510 – 540nm | 600nm longpass |
With the Royal Blue (RB) excitation we offer two options for filter glasses – longpass and bandpass. Read our article on selecting the right passband option for your application.
MORE: Fluorescence Flashlight
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