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Phos-4 Specs > Phos-4 LED Source
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Phos-4 Specs


Size (H x W x D) 90 x 66 x 95 mm
Weight 0.5Kg
Storage Temperature 5°C to 55°C
Operating Temperature Range 15°C to 35°C
Humidity range - Non Condensing; 15°C to 30°C; 0 to 80%
Humidity range - Non Condensing; 30°C to 35°C; 0 to 40%
Pollution degree (As per IEC 61010-1) 2
Power Input (use power supply provided - P4-PSU) 12V, 2A
Power Connection 5.5mm, 2.1 pin (Pin positive)

Power Supply (P4-PSU)

Input Voltage Range 90 to 264 V
Input Frequency 47 to 63 Hz
Efficiency Level VI, CoC Tier 2
Country Plug adapters United States, United Kingdom, European Union, Australia

LED Drive

Number of Channels 4
Maximum current per LED 800mA
Maximum current – Total 1200 mA
Current stability (Operating temperature range) < 0.5mA
Current transient – ON <1.0 µS
Current transient – OFF < 0.2 µS
LED temperature Stability (Continuous 500mA; Ambient 25°C; LED 35°C) < 0.2°C
Time to Stabilise (Ambient 25°C; LED 35°C) < 5 minutes

Fibre Optic Coupling

Default SMA 905
With P4-MIC 16 mm diameter (Fibre Bundle Adapter)
With P4-MIC and P4-LLG 5 mm diameter (Liquid Light Guide Adapter)


Z Adjustment M4 Drive Screw (Stages selectively friction engaged)
LED Z- Range (From fibre tip) 1 to 27mm
Lens Z- Range (From fibre tip) 1 to 22mm
Lens X-Y- Range (Phos-4 P only) ±1.5mm
Lens (Phos-4 P only) f 3.3mm, NA 0.47, Aspheric, AR coating 350-700nm

Operation Modes

Continuous 0 to LED Max Current; ~0.3mA Steps;
PWM Frequency 1Hz to 200kHz
PWM fraction 0 to 100% in 1% steps
Sequence Frequency 1Hz to 20kHz
Sequence Steps 0 to 255 counts


USB Virtual COM port (Mini-B plug; CDC Class)
UART TTL Compatible Levels (Using P4 Connect)
Logic In TTL Levels (direction defined by P4 Connect)
Logic Out TTL Levels (direction defined by P4 Connect)