40W Constant voltage driver with 24V output

Place of Origin Shenzhen, China
Certification CE
Model Number KL40V-PDiiV
Minimum Order Quantity 100PCS
Price Negotiation
Packaging Details Instruction+clapboard+outer carton
Delivery Time 1, Sample and small order: Within 5 working days after receiving your payment. 2, Bulk order: 3-4 weeks after receiving deposit.
Payment Terms T/T
Supply Ability 10000 pcs/month

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Product Details
Voltage Range 198~264Vac 50Hz /60Hz DC Voltage Range 200~240Vdc
Rated Supply Voltage 220~240Vac 50Hz /60Hz Input Current 0.21A Max.@230Vac
Power Factor > 0.95 Stand-by Power ≤0.5W
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Product Description

KL40V-PDiiV 40W Constant voltage driver with 24V output


Product Feature

  • Flicker-free for whole dimming range
  • Stand-by power below 0.5W
  • Primary dimming with push button
  • Secondary dimming with 0-10V dimmer and potentiometer
  • Built-in DALI interface DT6
  • Supports 10V PWM dimming (3KHz-8KHz)
  • Protection: short circuit / over temperature/ over voltage
  • Derating current for over high ambient temperature
  • Push dim with memory function
  • 5 year warranty



Series Name KL40V-PDiiV1
Input Voltage range 198~264Vac 50Hz /60Hz
Rated supply voltage 220~240Vac 50Hz /60Hz
DC voltage range 200~240Vdc
Input current 0.21A Max.@230Vac
Inrush Current 15A (Half current pulse width 100US) @230VAC
Power factor > 0.95 (@230Vac,100% load)
Total harmonic distortion Typical: 16% (@230Vac, 100% load)
Stand-by power ≤0.5W
Efficienc(@230Vac,100% load) 89%Max
Wiring method Push terminal, wire cross section:0.5-1.5mm2
Loop-in&Loop-out quantity 30PCS(@230Vac)

Automatic circuit breaker

(Calculate current in the wire)

type B10 B13 B16 B20 B25
Number 35 45 55 70 86
type C10 C13 C16 C20 C25
Number 20 25 30 42 50



Operating mode Constant voltage
Load type LED
Flickering / Flickering-Free Flickering-Free
Start up time <1s (@230Vac)
Load output voltagerange 24V CV
Load output current 1.67A Max.
Full load output power 40W Max.
Minimum load 3W
Output current/voltage tolerance ±5%
Wiring method Push terminal, wirecross section:2*0.5-2.0mm2
Control Method Primary PUSH Dimming Primary PUSH dimming (Max. lead wire length:20m)
1-10V(0-10V)Dimming 1-10V dimming(Port current<1mA),
(Max. lead wire length:20m)
Dimming Range Primary PUSH & DALI dimming: 0%-100%
1-10V dimming:1%-100%
Secondary PWM dimming 1-10V port PWM dimming (3KHz-8KHz)
Potentiometer Yes, 100kΩ
DALI function DALI dimming (Max. lead wire length:300m)
Exception Protection Requirements Output over temperature
Yes, reset power on to recover
Output short circuit protection Yes, reset power on to recover



Operating temperature/ humidity -25℃~50℃ Humidity:85% (Non-condensing)
Storage temperature/ humidity -40℃~80℃, Humidity:10%–95%
Max. case temp(Tc) 85℃
EMC standard EN55015, EN61547, EN61000-3-2, EN61000-3-3
DALI standard IEC62386-102, IEC62386-207
Safety standard EN61347-1, EN61347-2-13
Certification CE
Withstand voltage 3750Vac, 5mA, 60s (Input “L N”- Output “SEC”)
Others Degrees of protection IP20
Type of protection Class II
Installation type Independent installation
Installation dimension 150*52*28mm
Memory function Yes, (PUSH with memory function)
PUSH dimming synchronization 20 units Max.
Packaging requirements Instruction+clapboard+outer carton(K=A)
Weight 300g
Life 5 years @Ta 100% load
Note: All parameters are tested at the input voltage of 230Vac and 25 degree environment unless specified.


Dimension (Unit:mm)

40W Constant voltage driver with 24V output 0


Wiring Diagram


40W Constant voltage driver with 24V output 1
Fig. A DALI Dimming
40W Constant voltage driver with 24V output 2
Fig.B Push Dimming

40W Constant voltage driver with 24V output 3
Fig.C 0-10V Dimming




40W Constant voltage driver with 24V output 4

Dimming curve

40W Constant voltage driver with 24V output 5

ON/OFF & Description of Dimming Operation


A. Short press the PUSH switch (short press time 0.1S-1S), the LED driver will turn on or off.

B. Dimming:

Press and hold the PUSH switch (1S-8S), the LED driver can achieve dimming, brightening or dimming, the dimming range is 2-100%.

C. Memory:

PUSH dimming has dimming memory function.

D. Dimming synchronization:

The power connected to the same PUSH switch can be synchronized by pressing and holding the PUSH switch for longer than 15S

E. DALI dimming mode:Connect the power supply to the DALI system, and it can be dimmed by the DALI host. The dimming range is 0-100%.

F. Constant voltage dimming drivers cannot be used in lamps with constant current circuits.