Facebook Messenger

Chat with us!

You agree that data will be send to Facebook

Privacy statement

BUCK Constant Current Power Supply (120mA, 30V)

High efficiency step down converter with PWM input


Amount Netto Brutto
from 1 14,20 € 16,90 €
Prices plus shipping costs

Part number:

Target country of delivery

Technical Data

Unit Value
Housing Color black
Width 34mm
Length 15mm
Unit min. typ. max.
Voltage 7.0V 30.0V
Current 120mA


The version especially for 2.5W and COB slim modules!

The BUCK constant current power supplies also kown as step down converters are charachterized by high operating ranges that are not subject to the number of connected illuminants (LEDs). Example: You can run a BUCK driver with 30V but with only one LEDs on the output side. The BUCK adjusts the volatge very efficiant and avoid overheating by autom. shut down to save the components. This is why we are able to over this product for low prices because we can use FR4 PCB material instead of aluminium.

A further main advantage is the PWM capability (Pulse-Width Modulation). The BUCK is compatible to controllers using common anode and has to be connected parallel to the RGB controller. The +/- outputs of the controller provide the PWM signal for seperate inputs on the BUCK PCB. This is a very easy way the run even big application most efficiently and cost saving. The above linked diagram shows the connection in detail.

Converting and quality are on highest levels. The very slim product style of only 15mm makes it perfect to fit in most LED profiles/tubes, torch housing and many more. Connecting is vey easy too because the 4 big soldering pads are clearly defined by inscriptions. Please read below the further features of this powerful little helper.

Techical data:

- Input: 7-30V DC (max.)
- Output: 120mA constant

- PCB isolated by protective laquer
- Can be glued to other surfaces
- Input short circuit protection
- Output short circuit protection
- Autom. shut down to avoid overheating
- Operating Temp: ~50°C over ambient temp.

If you have any questions please contact our support.

Delivery time

Deliveries within Germany take 2-3 days beginning after receipt of payment, for deliveries to invoice beginning with the shipment, for deliveries to cash on delivery beginning with receipt of order. Payments and incoming orders beyond our business hours let the delivery time begin with the next workday. For deliveries to other EU countries the delivery time may be extended up to 3 weeks. The delivery time is subject to the proper delivery of the logistics company, as far as delivery delays are not caused by us. The validity of the above delivery times requires the availability of the ordered goods from stock at the time the delivery time is beginning.