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AC-Dimmable Power Supplies for White LED Lighting - Hardware
AC-Dimmable Power Supplies for White LED Lighting - Hardware
AC-Dimmable Power Supplies for White LED Lighting - Hardware
To control the brightness of your white LED lighting using an in-wall AC dimmer switch like those you might already have elsewhere in your home, you need an AC-dimmable power supply.

Installed between a dimmer switch and the LED lighting, these units are intended for direct connection to 120VAC household wiring. Most common dimmers can be used, but a C-L dimmer, which has features specific to LED lighting, is recommended.

Select a power supply with wattage equal to or greater than the total wattage of your lighting arrangement. Not for use with color-controlled lighting. cETLus listed.

LED Tape Lighting

For tape lighting, the power requirement is determined by the wiring configuration, the LED density (# LEDs/m) of your chosen lighting and the length of the lighting. The lengths shown in the charts are totals for the tape lighting (at full brightness) in various wiring configurations.

A straight-run layout uses single or multiple strips in series powered only at one end of the LED strip. A center-feed layout powers two equal legs of tape lighting from a central position; a loop-back layout has both ends of the LED tape powered simultaneously. Array layouts have several unequal lengths of tape powered from one end. Do not include the length of connecting wires when referencing the chart.

For long lighting runs, an array-based wiring configuration, makes the best use of the capacity of the larger power supplies. For installations combining tape lighting and individual LED lights, the power supply should be chosen based on the sum of the two power requirements.

For Individual LED Lights

For all individual (non-tape) LED lighting, the appropriate power supply wattage is determined by the number of lights being used and their wattage at full brightness. For example, a 24-watt power supply effectively runs up to 6 of the 4W white downlights.

Exceeding the power supply’s capacity will cause the lights to flicker or appear dim. The number shown in the chart below indicates the maximum number of individual LED lights that can be installed per power supply.

E. Skylark C·L Dimmer for Dimmable Transformer

This dimmer is compatible with our dimmable power supplies. It has an on/off rocker switch and a slider switch to control brightness and installs in a standard switch box (not supplied). cULus listed, it comes with wiring instructions. A white wall plate, if you need one, is available separately.

Maximum Tape Lengths for Straight Run Layouts
LED
Density
LEDs/m
A. 24W
00U43.20
$40.50
Add to cartOnline: Available
Instr
B. 45W
00U43.21
$61.00
Add to cartOnline: Available
Instr
C. 60W
00U43.22
$81.00
Add to cartOnline: Available
Instr
D. 120W
00U43.23
$108.00
Add to cartOnline: Available
Instr
White LED Tape Lighting

Note: 120 density is for indoor use only.
30 32.8' (10m) 32.8' (10m) 32.8' (10m) 32.8' (10m)
60 12' (3.7m) 16.4' (5m) 16.4' (5m) 16.4' (5m)
120 5.5' (1.7m) 13' (4m) 16.4' (5m) 16.4' (5m)

Maximum Tape Lengths for Center-Feed or Loop-Back Layouts
LED
Density
LEDs/m
A. 24W
00U43.20
$40.50
Add to cartOnline: Available
Instr
B. 45W
00U43.21
$61.00
Add to cartOnline: Available
Instr
C. 60W
00U43.22
$81.00
Add to cartOnline: Available
Instr
D. 120W
00U43.23
$108.00
Add to cartOnline: Available
Instr
White LED Tape Lighting

Note: 120 density is for indoor use only.
30 19.6' (6m) 59' (18m) 65.6' (20m) 65.6' (20m)
60 9' (2.8m) 19.6' (6m) 32.8' (10m) 32.8' (10m)
120 5' (1.5m) 10' (3m) 15' (4.6m) 32.8' (10m)

Maximum Wattage for Array Layouts
A. 24W
00U43.20
$40.50
Add to cartOnline: Available
Instr
B. 45W
00U43.21
$61.00
Add to cartOnline: Available
Instr
C. 60W
00U43.22
$81.00
Add to cartOnline: Available
Instr
D. 120W
00U43.23
$108.00
Add to cartOnline: Available
Instr
In an array configuration, each leg is wired as a straight layout. Determine the wattage required for each leg, based on its length, and add them together to determine the total power needed. Select a power supply that equals or exceeds that total wattage. Do not create a leg longer than the maximum shown in the last column.*

If your project requires a length of tape lighting longer than the maximum, use an array of multiple shorter segments to achieve that result.
Example:

 

Leg 1 is 6' of 30 LEDs = 8W
Leg 2 is 12' of 30 LEDs = 14W
Leg 3 is 3' of 30 LEDs = 4W
  Total wattage = 26W
Requires a 30W standard OR a 45W AC-dimmable power supply
LED
Density
LEDs/m:

30
Length 3.3'
(1m)
6.6'
(2m)
9.8'
(3m)
13'
(4m)
16.4'
(5m)
19.7'
(6m)
26.2'
(8m)
32.8'
(10m)
   
Watts 4.5 8.5 12 15 17 19 22 23    
LED
Density
LEDs/m:

60
Length 1.6'
(0.5m)
3.3'
(1m)
4.9'
(1.5m)
6.6'
(2m)
8.2'
(2.5m)
9.8'
(3m)
13'
(4m)
16.4'
(5m)
   
Watts 5 9 13 16 19 22 25 28    
LED
Density
LEDs/m:

120
Length 1.6'
(0.5m)
3.3'
(1m)
4.9'
(1.5m)
6.6'
(2m)
8.2'
(2.5m)
9.8'
(3m)
11.5'
(3.5m)
13'
(4m)
14.8'
(4.5m)
16.4'
(5m)
Watts 8 15 21 27 32 36 40 43 46 48
     Note: 120 density is for indoor use only

Maximum Number of Individual LED Lights per Power Supply
LED Light Watt/
unit
A. 24W
00U43.20
$40.50
Add to cartOnline: Available
Instr
B. 45W
00U43.21
$61.00
Add to cartOnline: Available
Instr
C. 60W
00U43.22
$81.00
Add to cartOnline: Available
Instr
D. 120W
00U43.23
$108.00
Add to cartOnline: Available
Instr
Maximum Number of Lights
  Mini-Recessed, White 1 24 45 60 120
  3-Watt LED Downlight, White 3.24 7 13 18 37
  4-Watt LED Downlight, White 4 6 11 15 30
  LED Landscape Light, White 5 4 9 12 24
  LED Wafer Light 3 8 15 20 40
  2" LED Spotlight (3-Watt) 3 8 15 20 40
  3-1/4" Adjustable-Beam LED Spotlight 8 3 5 7 15
  RigidStrip™ Light Bars
3.5 6 8* 8* 8*
* The maximum number of RigidStrip™ lights in one leg. To power additional lights, wire multiple legs up to the capacity of the power supply. See instructions for details.

E.  Skylark C-L Dimmer   00U41.79     $38.50 Add to cartOnline: Available
F.  Wall Plate, White   00U41.80     $1.50 Add to cartOnline: Available

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