LED Driver LDD-300H

[RodneyB]

I am trying to find out exactly how many LED down lights I can run from the driver. The Specifications of the older drivers which failed are for a 9Watt LED down light
Secondary details of the old driver DC13 - 36 Volts 320mA from the LDD-300H I am trying to find out exactly how many of these LED down lights it will drive.
Many thanks
Rodney

 

[alec_t]

What is the voltage rating of the LED light?
There are six models of driver in the datasheet. Which one do you have?

 

[RodneyB]

What is the voltage rating of the LED light?
There are six models of driver in the datasheet. Which one do you have?

The LED voltage is 24 Volts. I have a LDD-300H controller

 

[alec_t]

A 9W light at 24V draws 375mA. The 300H driver is rated at only 300mA so won't be able to drive any of those lights at full rated power, but should drive two such lights, connected in series, at 300mA.

 

[RodneyB]

What is the voltage rating of the LED light?
There are six models of driver in the datasheet. Which one do you have?

The LED voltage is 24 Volts. I have a LDD-300H controller

 

[alec_t]

Yes, you told us that in post #3 . Did you read post #4?

 

[RodneyB]

I did read post number four I have one of the LED lights connected to the LDD-300H and its working.

 

[alec_t]

Good. Have you tried two in series?

 

[jjw]

The driver is a step down constant current converter.
Two 24V leds in series needs about 50V input voltage for the driver.

 

[alec_t]

Two 24V leds in series needs about 50V

The driver output is rated 52V, so should cope.