The X-Cite® Tetrem is a high-power, four-wavelength LED illumination system designed to provide researchers with a superior alternative to traditional mercury lamps. Engineered for high-speed, multi-color fluorescence microscopy, it delivers exceptional power and stability across the visible spectrum. The system features a Long Lifetime Reliability of 25,000 hours, eliminating the maintenance burdens of bulb replacements and re-alignments.
The Tetrem offers Four-Channel LED Excitation with precisely optimized peaks for the most common fluorophores: DAPI (385 nm), GFP/FITC (470 nm), RFP/mCherry (560 nm) and Cy5 (640 nm). This design ensures bright, uniform illumination and outstanding signal-to-noise ratios. For automated workflows, it provides Seamless Integration via USB for PC Control and External TTL trigger integration for millisecond-speed synchronization. For real-time manual operation, a dedicated Control Pod is included to manage wavelength selection and intensity (0%–100% in 1% steps).
X-Cite TETREM Spectra with Excitation Bands
Photos taken from X-Cite TETREM
Technical Specifications
| Model: XT640S | Model: XT640L |
| Wavelength Range | 360-660 nm | 380-660 nm |
| LED Peaks (nm) | 365, 475, 555, 635 | 385, 475, 555, 635 |
| External Power Supply | Universal input 100-240 VAC, 50/60 Hz 1.85A max/115V, 1.0A max/230V |
| Power Input to X-Cite Unit | 24VDC, 4.0A |
| LED ON/OFF Response Times | 100 μs TTL / 1 ms USB |
| Control Options | smartDIAL
ON/OFF - TTL compatible
Intensity - Analog
RS-232 commands (SDK available), USB |
| I/O Connections | Mini DIN plug, 9pos (smartDIAL)
USB (B-type)
DB25 x 8 BNC (4 x TTL, 4 x Analog) |
