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
Xite-RB and
glasseswith a fluorescent mineral
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
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
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
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.
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.
Camera filter recommendations
If you want to use the Xite as a light source for fluorescence photography, we have prepared recommendations for compatible off-the-shelf camera filters.
Flashlight specifications
Dimensions – 13.5 cm long x 3.2 cm diameter (5.3 in x 1.26 in)
Weight – 255g (9.0 oz) with battery
Note – the Xite flashlights are not suitable for underwater use