Dimming Guide and Step-down Transformer Application Note
The SLD LED Series provides continuous dimming with reverse or forward phase cut dimmers; as low as 5% depending upon
dimmer and low-end trim of the dimmer.
Eaton's AL Series dimmers offer versatile options
to set the mood and reduce energy consumption.
Visit www.cooperwiringdevices.com/ALSeries for
more information.
Dimmer Features
Rapid Start feature*Selectable ON or OFFFully adjustableFixed ONFully adjustable
Adjustable high-end trim•
Adjustable low-end trim••••
Wiring configurationsSingle-pole or
Color change kits•••
*Note: The Rapid Start feature is used to ensure the right amount of power boost during start-up. When a dimmer with Rapid Start is turned on from a low dimmer setting,
the LED lighting may exhibit a momentary flash. Select dimmer models offer an adjustment of the Rapid Start feature. The user may wish to adjust this setting to reduce the
boost and resulting momentary flash. If this capability is desired, the user should select dimmer models designated as “fully adjustable” or “selectable ON or OFF”.
Smart dimmer
AAL06/WBSD-SMT
multi-location
120V AC Power
120V AC dimmed power
to Halo Surface
LED Downlights
Decorator dimmer
DAL06P/WBSD-DEC
Single-pole or 3-waySingle-pole or 3-waySingle-pole or 3-way
INC = Incandescent
HAL = Halogen
MLV = Magnetic Low Voltage
ELV = Electric Low Voltage
CFL = Compact Fluorescent
FLR = Fluorescent
5
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Incandescent and Electronic Low Voltage Rated Dimmers - For Reference Only
Testing conducted by Eaton's lighting division is not a substitute for and does not imply certification by an independent laboratory or any other standards certification.Refer
to manufacturer specifications for more detailed information on product certifications and standards. Refer to this dimming guide notes section. Consult the dimmer manufacturer prior to installation to ensure compatibility.
3. Blinks at power on. With 4 fixtures starts to shimmer
Dimmer Rating - Load Type
INC = Incandescent
HAL = Halogen
MLV = Magnetic Low Voltage
ELV = Electric Low Voltage
CFL = Compact Fluorescent
FLR = Fluorescent
6
Page 7
Incandescent and Electronic Low Voltage Rated Dimmers - For Reference Only
Testing conducted by Eaton's lighting division is not a substitute for and does not imply certification by an independent laboratory or any other standards certification.Refer
to manufacturer specifications for more detailed information on product certifications and standards. Refer to this dimming guide notes section. Consult the dimmer manufacturer prior to installation to ensure compatibility.
Dimmer
Make
EATONToggleTI-061INC/HAL 13872%9%<1 Sec
EATONAspire9530AWINC138100%5%<1 Sec
EATONRotaryRI061INC/HAL13895%10%>10 Sec
EATONSlideSF8APCFL 17695%16%<1 Sec
EATONDecoratorDE06PELV13873%9%<1 Sec
LutronTogglerTG-600PINC 13894%10%<1 Sec
LutronDivaDV600PINC 13889%5%<1 Sec
LutronMaestroMAW600INC/HAL 13888%3%<1 Sec
LutronLumeaLG600PINC/HAL 13887%7%>10 Sec
LutronSkylarkS600PINC/HAL 13887%6%<1 Sec
Lutron
LutronDivaDV603PINC/HAL 13886%8%<1 Sec
LutronNova TNTFTU-5ACFL 14897%15%<1 Sec
LutronMaestroMAELV600ELV13888%8%<1 Sec
LutronFaedraFAELV500ELV13287%7%<1 Sec
LutronDivaDVELV303PELV11980%6%<1 Sec
LutronSkylarkSELV300PELV11981%6%<1 Sec
LevitonDecora6673CFL/INC13892%7%<1 Sec
LevitonSureSlide6631-2INC 13894%4%>10 Sec
LevitonIllumatech RP106INC 138100%7%>10 Sec
LevitonIllumatech IPI06INC 138100%4%<1 Sec
LevitonViziaVP106INC 13891%5%<1 Sec
LevitonDecora6161INC 13289%8%<1 Sec
LevitonSureSlide6633-PINC 13899%2%2-10 Sec
LevitonAcentiATX10CFL 16491%9%<1 Sec
Leviton
LevitonViziaVPE06ELV13898%6%<1 Sec
LevitonIllumatech IPE04ELV11997%4%<1 Sec
LevitonViziaVZE04ELV12593%7%<1 Sec
Legrand
Hubbell
Dimmer
Series
Skylark
Contour
Plug In
Lamp
Pass &
Seymour
Trade
Select
Dimmer
Model #
CT103PINC/HAL/MLV16487%6%>10 Sec
TBI03Triac11999%6%>10 Sec
HLV703PTCMLV14493%8%<1 Sec
RD600PDKINC13886%22%<1 Sec
Dimmer RatingMinimum Luminaires
(per circuit)
Maximum Recommended
Luminaires (per circuit)
Max Dimming
percentage (%)
Min Dimming
percentage (%)
Start
Time
1
2
3
4
5
6
1. Dims to 10% then turns off when dimmed lower
2. Shimmer at lowest dim setting
3. Mild flashes at startup and during dimming
4. Dims to 7% then turns off when dimmed lower
5. Stutters while dimming
6. Fixtures at 2% dimming level no starts lightly shimmer
Dimmer Rating - Load Type
INC = Incandescent
HAL = Halogen
MLV = Magnetic Low Voltage
ELV = Electric Low Voltage
CFL = Compact Fluorescent
FLR = Fluorescent
7
Page 8
Incandescent and Electronic Low Voltage Rated Dimmers - For Reference Only
Testing conducted by Eaton's lighting division is not a substitute for and does not imply certification by an independent laboratory or any other standards certification.Refer
to manufacturer specifications for more detailed information on product certifications and standards. Refer to this dimming guide notes section. Consult the dimmer manufacturer prior to installation to ensure compatibility.
INC = Incandescent
HAL = Halogen
MLV = Magnetic Low Voltage
ELV = Electric Low Voltage
CFL = Compact Fluorescent
FLR = Fluorescent
8
Page 9
Incandescent and Electronic Low Voltage Rated Dimmers - For Reference Only
Testing conducted by Eaton's lighting division is not a substitute for and does not imply certification by an independent laboratory or any other standards certification.Refer
to manufacturer specifications for more detailed information on product certifications and standards. Refer to this dimming guide notes section. Consult the dimmer manufacturer prior to installation to ensure compatibility.
INC = Incandescent
HAL = Halogen
MLV = Magnetic Low Voltage
ELV = Electric Low Voltage
CFL = Compact Fluorescent
FLR = Fluorescent
9
Page 10
0-10V Low Voltage Rated Dimmers - For Reference Only
Testing conducted by Eaton's lighting division is not a substitute for and does not imply certification by an independent laboratory or any other standards certification.Refer
to manufacturer specifications for more detailed information on product certifications and standards. Refer to this dimming guide notes section. Consult the dimmer manufacturer prior to installation to ensure compatibility.
Halo LED models that are specified for 0-10V dimming capability use drivers that are designed for use with 0-10V DC low voltage dimmers. 0-10V DC dimmers are quite commonly used with 0-10V fluorescent dimming ballasts such as Mark-7®, Quicktronic Helios™ or TVE™ that operate using two low voltage dimming wires that are separate
from the 120V AC or 277V AC power. Switching on/off is controlled via the line voltage power (120V AC or 277V AC). The dimming control signal runs on two low voltage
control wires (color coded violet and gray). The 0-10V dimmer operates on a “sinking” control signal where the dimmer uses a different level of the control voltage to set the
desired dimming level.
"Maximum
Recommended
Luminaires
(per circuit) at
120V"
"Maximum
Recommended
Luminaires
(per circuit) at
277V"
Max Dimming
percentage(%)
Min
Dimming
percentage(%)
Low End
Start-up
time
Dimmer Rating - Load Type
0-10V = 0-10V Low Voltage
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Dimmer Notes:
1. Start time is measured at the lowest dimmer setting.
2. Some LED rated dimmers have a "rapid start" design used to provide a momentary power boost for LED and CFL
lamps during start-up. When a LED luminaire is on a dimmer with "rapid start" the boost may cause a momentary
flash of the LED lighting. This "flash" is generated by the dimmer, and may be more noticeable when the dimmer
is at a low setting. A solution is available in the following EATON dimmers which provide adjustment capability of
the "rapid start": Decorator (DAL06P), Smart (AAL06), and Toggle (TAL06P). Refer to product specifications online at
www.cooperwiringdevices.com for more details.
Dimming Guide Disclaimer:
®
1. Leviton
Electronics Co. Inc.; Lightolier® is a registered trademark of Philips Lighting; Hubbell® is a registered trademark of
Hubbell Incorporated; Legrand
is a registered trademark of Leviton Manufacturing Co. Inc.; Lutron® is a registered trademark of Lutron
®
and Pass & Seymour® are registered trademarks of Legrand®. These companies and
their tradenames, trademarks or brands, where noted, are associated with their respective company and are not
associated with EATON.
2. Testing conducted by EATON is not a substitute for and does not imply certification by an independent laboratory or
any other standards certification. Refer to the manufacturer specifications for more detailed information on product
certifications and standards.
3. This is a representative list of typical dimmers as tested by EATON for performance with the designated LED
luminaires only. Test data contained in this literature is based upon dimmers obtained in the marketplace.
• Information about these other manufacturers products is obtained from packaging and published information
made available by the manufacturer and is deemed to be reliable, but has not been verified.
• Dimmer performance and perceived limitations of the dimmers are based onfactors outside of EATON's control.
• The specifications of these dimming controls and their conditions of use may change without notice to EATON or
any other user.
• EATON makes no specific recommendation on product selection and there are no warranties of performance or
compatibility implied.
• Installer must ensure proper local and national electrical codes are followed; and that the dimmer application and
condition of use is per dimmer manufacturer instructions and guidelines.
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Application Note
H277, H347 and H347200 step-down transformers are qualified to drive multiple Halo
LED on a single circuit in Non-IC construction. Installation of these transformers with
individual LED fixtures on circuits with multiple LED loads is not recommended.
This is not recommended due to resulting multiple inductive currents pulled by each
transformer; in this situation the majority of the power would then be reactive (VARS)
and not real (WATTS). If H277, H347 or H347200 transformers should be used individually
on each LED fixture in a single circuit, then that circuit should be sized for lowered power
factor as well as increased apparent power on the circuit. H277, H347 and H347200 are
UL/cUL listed for use with Halo recessed housings: H750T, H750TCP, H7T, H7TNB, H7RT.
Step Down Transformers
H277 = Steps 277 line voltage down to 120 volts. Attaches to knockout on first fixture’s
junction box in a circuit and is 300VA rated. H277 is a UL recognized Component listed
under the luminaire UL/cUL listing for Halo Non-IC housings.
H347 and H347200 = Steps 347 line voltage down to 120 volts. Attaches to knockout on
first fixture’s junction box in a circuit. H347 is 75VA and H347200 is 200VA rated. H347 is
a CSA/UL Listed Component for use under the luminaire UL/cUL listing with Halo Non-IC
housings.
H277
277V Step Down Transformer,
300VA
2-3/16”
[56mm]
4-3/16”
[106mm]
H277
Transformer Load - H277 (300VA)
1. H277 Transformer at full loading consumes a maximum of 16W of power.
2. When a dimmer or switch is on the secondary (120V) side of the transformer, power
is consumed by the transformer when the dimmer or switch is in “OFF” mode at 6.5W
and in “ON” mode at 16W maximum under full loading.
3. When a switch is on the primary (277V) side ahead of the transformer, power is
consumed only in “ON” mode to a maximum of 16W under full loading. (Use of a
dimmer ahead of the transformer is not recommended)
Transformer Load - H347 (75VA)
1. H347 Transformer at full loading consumes a maximum of 15W of power.
2. When a dimmer or switch is on the secondary (120V) side of the transformer, power
is consumed by the transformer when the dimmer or switch is in “OFF” mode at 2.5W
and in “ON” mode at 15W maximum under full loading.
3. When a switch is on the primary (347V) side ahead of the transformer, power is
consumed only in “ON” mode to a maximum of 15W under full loading.
(Use of a dimmer ahead of the transformer is not recommended)
Transformer Load - H347200 (200VA)
1. H347200 Transformer at full loading on 120V side consumes a maximum of 28W
of power.
2. When a dimmer or switch is on the secondary (120V) side of the transformer, power
is consumed by the transformer when the dimmer or switch is in “OFF” mode at 9.2W
and in “ON” mode at 28W maximum under full loading.
3. When a switch is on the primary (347V) side ahead of the transformer, power is
consumed only in “ON” mode to a maximum of 28W under full loading.
When a switch is on the primary (277V) side ahead of the transformer, power is
consumed only in “ON” mode to a maximum of 12W under full loading.
(Use of a dimmer ahead of the transformer is not recommended)
H347
347V Step Down Transformer,
75VA
2-1/2”
[63mm]
2-3/4”
[70mm]
H347
H347200
347V Step Down Transformer,
200VA
2-3/16”
[56mm]
4-3/4”
[121mm]
H347200
SLD - Surface LED Downlight Series
SLD Maximum Units on Step Down Transformer
Powered Circuits
VA RatingMax # of FixturesMax # of Fixtures
H277
H347
H347200
3001816
7544
2001210
SLD4, SLD6 - 80 CRI
SLD4 - 90 CRISLD6 - 90 CRI
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Transformer with Dimmer/Switch on 120V Secondary
120V Dimmer or Switch
Hot
Transformer
277V
(347V)
Hot
120V
Neutral
Neutral
Ground
Dimmer Neutral Connection typical with some Dimmers
Transformer with Switch on 277V Primary
Switch*
Transformer
Hot
277V
120V
Neutral
LEDLEDLED
Hot
LEDLEDLED
Neutral
Ground
*Use of a dimmer ahead of the transformer is not recommended
Transformer with Switch on 347V Primary
347V Switch*
Transformer
Hot
347V
120V
Neutral
Ground
*Use of a dimmer ahead of the transformer is not recommended
Hot
LEDLEDLED
Neutral
Eaton
1121 Highway 74 South
Peachtree City, GA 30269
P: 770-486-4800
www.eaton.com/lighting