Description
Hayashi LA-150EX-P Microscope Lamp Power Supply 5-15VDC Adjustable Brightness
The Hayashi LA-150EX-P is a benchtop DC power supply designed specifically to drive lamp bulbs in optical microscope illumination systems. Manufactured by Hayashi Watch Works Co., Ltd. of Japan, it provides a continuously adjustable DC output from 5 to 15 volts, allowing the user to dial in the precise lamp brightness needed for a given microscopy application. The front-panel analog voltmeter gives a direct readout of the output voltage at a glance.
Specifications & What's Included
- Model: LA-150EX-P
- Manufacturer: Hayashi Watch Works Co., Ltd. (Japan)
- Output voltage: 5–15V DC, continuously adjustable via 10-position rotary CONTROL knob
- DC output pins: Pins A and B on 5-pin circular rear connector
- AC output: 120V AC on Pins D and E (for lamp/bulb cooling fan power)
- Output connector: 5-pin circular connector (4 of 5 pins active)
- Secondary rear connector: DB25 parallel port
- Front panel: Analog voltmeter (0–15V scale), 10-position CONTROL knob, INT/EXT SELECT toggle switch, POWER toggle switch (ON/OFF)
- Indicators: Green POWER LED, LAMP WARNING LED (red/amber)
- Cooling: Large finned aluminum heatsink on right side panel
- Power input: 120V AC via standard NEMA 5-15 power cord
- Form factor: Benchtop, self-contained enclosure
- Included: Standard AC power cord
- Not included: Lamp housing, bulb, or output cables
Applications
The LA-150EX-P is used as the illumination power controller for optical microscopes that use adjustable DC-powered lamp bulbs — typically research-grade stereo microscopes, biological microscopes, and industrial inspection microscopes where precise, flicker-free brightness control is important. Variable lamp power supplies like this one allow the operator to reduce lamp intensity for sensitive specimens, match illumination to the objective being used, or extend lamp life by running at lower voltages. The INT/EXT select switch suggests the unit can be driven by an internal manual control or by an external signal source, which supports integration into automated or semi-automated imaging systems. Hayashi Watch Works is a Japanese manufacturer with a long history of producing optical and microscopy accessory equipment, and the LA-150EX series was commonly paired with Hayashi fiber-optic and halogen microscope lamp systems. Units like this remain in active use in labs, quality control stations, and academic research settings that maintain legacy Hayashi microscope illumination equipment.
This Hayashi LA-150EX-P microscope lamp power supply has been tested at our facility and is in good working order. The front panel voltmeter, brightness control knob, SELECT switch, and indicator LEDs all appear intact and functional. The unit shows light cosmetic wear consistent with normal lab use — minor scuffing on the case exterior — but is overall in clean, presentable condition. The large heatsink on the right side is free of damage. A standard AC power cord is included. No lamp housing, bulb, or output cables are included. Please view our photo set and contact us if you have any questions. Please note: We have multiple units in stock — yours may not be the one shown in the photos, however, it will be similar in condition and function.
Warranty Information
Additional Information
Brand: |
Hayashi |
Model: |
LA-150EX-P |
MPN: |
LA-150EX-P |
SKU: |
24350 |
Type: |
Microscope Lamp Power Supply |
Output Voltage: |
5–15V DC (adjustable) |
AC Output: |
120V AC (Pins D/E, for lamp cooling fan) |
Output Connector: |
5-Pin Circular (4 pins used: A/B DC, D/E 120V AC) |
Rear Connector 2: |
DB25 parallel port (rear panel) |
Voltage Control: |
10-position rotary control knob (front panel) |
Front Panel Meter: |
Analog voltmeter (0–15V scale) |
Indicators: |
POWER LED (green), LAMP WARNING LED (red/yellow) |
Select Switch: |
INT / EXT selector switch (front panel) |
Form Factor: |
Benchtop |
Cooling: |
Large finned aluminum heatsink (right side) |
Power Input: |
120V AC (standard NEMA 5-15 power cord included) |
Manufacturer: |
Hayashi Watch Works Co., Ltd. |
Country/Region of Manufacture: |
Japan |
Compatible With: |
Microscopes using adjustable DC lamp/bulb illuminators |
Seller Notes: |
Includes power cord. No lamp housing, bulb, or output cables included. |
Condition: |
Used – Inspected and Tested |
Condition Notes: |
Hayashi LA-150EX-P microscope lamp power supply. Tested at our facility and in good working order. Light cosmetic wear on the case. Includes AC power cord. No lamp housing, bulb, or output cables included. |
