HALO LT Retrofit LED Downlight Series
Dimming Guide and Step-down Transformer Application Note
The LT LED Series provides continuous dimming with reverse or forward phase cut dimmers.
LT4 and LT56 Series Models:
- LT460WH927, LT460WH930, LT460WH935, LT460WH940, LT460WH950
- LT560WH6927, LT560WH6930, LT560WH6935, LT560WH6940, LT560WH6950
Phase Control Dimming
Suitable for LT56 High Lumen recessed housing installation.
A diagram illustrates a typical installation of a 120V AC dimmed power to Halo LED Downlights, connected via a step-down transformer from a 120V AC power source.
HALO HOME Smart Dimmer
The HALO Home In-wall Smart Dimmer (HIWMA1BLE40AWH) controls standard lighting fixtures with dimmer capabilities. It offers features such as ON/OFF, Dim, Group, Scene, and Schedule control via the HALO Home mobile app.
A visual shows the HALO Home app interface with lighting controls.
Eaton's AL Series Dimmers
Eaton's AL Series dimmers provide versatile options for mood setting and energy reduction. More information is available at www.cooperwiringdevices.com/ALSeries.
Images display various Eaton AL Series dimmers: SMART (AAL06), DECORATOR (DAL06P), SLIDE (SAL06P), and TOGGLE (TAL06P).
Dimmer Features Comparison:
| Feature | SMART (AAL06) | DECORATOR (DAL06P) | SLIDE (SAL06P) | TOGGLE (TAL06P) |
|---|---|---|---|---|
| Rapid Start feature* | Selectable ON or OFF | Fully adjustable | Fixed ON | Fully adjustable |
| Adjustable high-end trim | • | • | • | • |
| Adjustable low-end trim | • | • | • | • |
| Wiring configurations | Single-pole or multi-location | Single-pole or 3-way | Single-pole or 3-way | Single-pole or 3-way |
| Color change kits | • | • | • | • |
*Note: The Rapid Start feature provides a momentary power boost during start-up. If a dimmer with Rapid Start is used with an LED luminaire at a low setting, a momentary flash may occur. Some dimmers offer adjustment of this feature to reduce the flash. Select dimmers noted as "fully adjustable" or "selectable ON or OFF" for this capability.
Compatible Dimmers for LT4/LT56 Series
The following table lists compatible dimmers with LT4 and LT56 series LED downlights, including dimmer make, series, model number, minimum and maximum luminaires per circuit, and dimming percentages.
| Dimmer Make | Dimmer Series | Dimmer Model # | Minimum Luminaires (per circuit) | Maximum Recommended Luminaires (per circuit) | Min Dimming percentage (%) | Max Dimming percentage (%) | Low End Start Time |
|---|---|---|---|---|---|---|---|
| EATON | Decorator | DAL06P | 1 | 24 | 10% | 97% | <1s |
| EATON | Toggle | TAL06P | 1 | 24 | 22% | 97% | <1s |
| EATON | Slide | SAL06P | 1 | 24 | 12% | 97% | <1s |
| EATON | Slide | SLC03PC-PTA | 1 | 24 | 10% | 98% | <1s |
| EATON | Toggle | DLC03P | 1 | 24 | 10% | 99% | <1s |
| EATON | iLumin | SC277-06-UN | 1 | 24 | 10% | 98% | <1s |
| EATON | Z-Wave | RF9640 | 1 | 24 | 16% | 95% | <1s |
| EATON | Halo Home | HIWMA1BLE40AWH | 1 | 24 | 11% | 97% | <1s |
| Lutron | Diva | C-L wall-mount dimmers (T1, T4, T5, T8) | 1 | 15 | 13% | 94% | <1s |
| Lutron | Skylark | C-L wall-mount dimmers (T1, T4, T5, T8) | 1 | 15 | 13% | 94% | <1s |
| Lutron | Skylark Contour | C-L wall-mount dimmers (T1, T4, T5, T8) | 1 | 15 | 13% | 94% | <1s |
| Lutron | Ariadni / Toggler | C-L wall-mount dimmers (T1, T4, T5, T8) | 1 | 15 | 13% | 94% | <1s |
| Lutron | Lumea | C-L wall-mount dimmers (T1, T4, T5, T8) | 1 | 15 | 13% | 94% | <1s |
| Lutron | Maestro | MACL-153M | 1 | 15 | 20% | 95% | <1s |
| Lutron | RadioRA 2 | RRD-6NA | 1 | 15 | 13% | 96% | <1s |
| Lutron | HomeWorks QS | HQRD-6NA | 1 | 15 | 13% | 95% | <1s |
| Lutron | HomeWorks | HxD-6ND | 1 | 9 | 19% | 94% | <1s |
| Lutron | Stanza | SZ-6ND | 1 | 9 | 19% | 94% | <1s |
| Lutron | PHPM-PA with Grafik Eye QS Main Unit | 1 | 150 | 17% | 95% | <1s | |
| Lutron | PHPM-WBX with 3-wire fluorescent control | 1 | 150 | 17% | 95% | <1s | |
| Lutron | Panel Module | HW/LP-RPM-4A-120 | 1 | 94 | 16% | 94% | <1s |
| Lutron | Panel Module | HW/LP-RPM-4U-120 | 1 | 44 | 17% | 94% | <1s |
| Lutron | Grafik QS/Wallbox Power Module | Grafik Eye QS Main Unit Family/LQRJ-WPM-6P | 1 | 44 | 18% | 93% | <1s |
| Lutron | Panel Module | GP (Harrier) Card | 1 | 44 | 19% | 92% | <1s |
| Lutron | Maestro Sensor | MSCL-OP153M(T2) | 1 | 15 | 14% | 94% | <1s |
| Lutron | Maestro Sensor | MSCL-VP153M(T2) | 1 | 15 | 14% | 94% | <1s |
| Lutron | Grafik Eye 3000/HomeWorks | Grafik Eye 3000 Family/HWI-WPM-6D-120 | 1 | 44 | 18% | 93% | <1s |
| Lutron | Caseta Wireless | PD-6WCL (SD11) | 1 | 15 | 20% | 93% | <1s |
| Lutron | RadioRA 2 | RRD-6CL (R3) | 1 | 15 | 18% | 94% | <1s |
| Lutron | Maestro Wireless | MRF2-6CL (M6) | 1 | 15 | 18% | 94% | <1s |
| Lutron | HomeWorks QS | HQRD-6CL (H2) | 1 | 15 | 18% | 94% | <1s |
| Lutron | HomeWorks QS | HQRA-6CL (H2) | 1 | 15 | 18% | 94% | <1s |
| Lutron | RadioRA 2 | RRD-6D | 1 | 9 | 20% | 94% | <1s |
| Lutron | RadioRA 2 | RRD-H6BRL (with neutral) | 1 | 10 | 16% | 93% | <1s |
| Lutron | HomeWorks QS | HORD-H6BRL (with neutral) | 1 | 10 | 16% | 93% | <1s |
| Lutron | Diva | 250W C-L dimmers (T5, T8) | 1 | 25 | 13% | 94% | <1s |
| Lutron | Ariadni | 250W C-L dimmers (T5, T8) | 1 | 25 | 13% | 94% | <1s |
| Lutron | Nova T | NTCL-250 (T8) | 1 | 25 | 13% | 94% | <1s |
| Lutron | Grafik T | GT-150 (T6) (without neutral) | 1 | 15 | 18% | 95% | <1s |
| Lutron | Grafik T | GTJ-150 (M6) (without neutral) | 1 | 15 | 18% | 95% | <1s |
| Lutron | HomeWorks QS/myRoom | LOSE-4A1-D | 1 | 9 | 17% | 94% | <1s |
| Lutron | HomeWorks QS/myRoom | MQSE-4A1-D | 1 | 9 | 17% | 94% | <1s |
| Lutron | HomeWorks QS/myRoom | MQSE-3A1 | 1 | 9 | 17% | 94% | <1s |
| Lutron | HomeWorks QS/myRoom | MQSE-2A1-D | 1 | 9 | 17% | 94% | <1s |
| Lutron | Caseta Wireless | PD-10NXD(SD11) | 1 | 9 | 17% | 94% | <1s |
| Lutron | Grafik T | GT-5NEM | 1 | 25 | 16% | 94% | <1s |
| Lutron | Grafik T | GTJ-5NEM | 1 | 25 | 16% | 94% | <1s |
Additional Compatible Dimmers (For Reference Only):
H703PTUW| Dimmer Make | Dimmer Series | Dimmer Model # | Minimum Luminaires (per circuit) | Maximum Recommended Luminaires (per circuit) | Min Dimming percentage (%) | Max Dimming percentage (%) | Low End Start Time |
|---|---|---|---|---|---|---|---|
| EATON | Toggle | T1061 | 1 | 49 | 3% | 87% | <1s |
| EATON | Aspire | 9530AW | 1 | 49 | 3% | 100% | >1s¹ |
| Eaton | Slide | SF8AP | 1 | 79 | 21% | 97% | <1s |
| EATON | Decorator | DE06P | 1 | 49 | 3% | 91% | >1s¹ |
| Lutron | Toggler | TG-600P | 1 | 49 | 2% | 97% | >1s |
| Lutron | Diva | DV-600P | 1 | 49 | 10% | 97% | <1s |
| Lutron | Maestro | MAW600 | 1 | 49 | 9% | 97% | <1s |
| Lutron | Lumea | LG600P | 1 | 49 | 10% | 97% | <1s |
| Lutron | Skylark | S-600P | 1 | 49 | 10% | 97% | <1s |
| Lutron | Skylark Contour | CT103P | 1 | 82 | 10% | 97% | <1s |
| Lutron | Diva | DV603P | 1 | 49 | 10% | 97% | <1s |
| Lutron | Nova T | NTFTU-5A | 1 | 49 | 18% | 98% | <1s |
| Lutron | Maestro | MAELV600 | 1 | 49 | 5% | 96% | <1s |
| Lutron | Faedra | FAELV500 | 1 | 49 | 5% | 97% | <1s |
| Lutron | Diva | DVELV303P | 1 | 49 | 1% | 92% | >1s² |
| Lutron | Skylark | SELV300P | 1 | 49 | 1% | 94% | >1s² |
| Leviton | SureSlide | 6674 | 1 | 12 | 10% | 99% | <1s |
| Leviton | Illumatech | IPL06 | 1 | 12 | 10% | 94% | <1s |
| Leviton | Decora | 6673 | 1 | 49 | 17% | 97% | <1s |
| Leviton | SureSlide | 6631-2 | 1 | 49 | 10% | 97% | <1s |
| Leviton | Illumatech | IP106 | 1 | 49 | 10% | 98% | <1s |
| Leviton | Vizia | VP106 | 1 | 49 | 10% | 93% | <1s |
| Leviton | Decora | 6161 | 1 | 41 | 5% | 97% | <1s |
| Leviton | SureSlide | 6633-P | 1 | 49 | 10% | 97% | <1s |
| Leviton | Vizia | VPE06 | 1 | 49 | 11% | 97% | <1s |
| Leviton | Illumatech | IPE04 | 1 | 24 | 10% | 100% | <1s |
| Leviton | Vizia | VZE04 | 1 | 32 | 10% | 97% | <1s |
| Legrand | Pass&Seymour Harmony | 1 | 37 | 9% | 100% | <1s | |
| Legrand Pass&Seymour Harmony | HLV703PTC | 1 | 49 | 10% | 99% | <1s | |
| Hubbell | TradeSelect | RD600PDK | 1 | 57 | 10% | 5% | <1s |
| Lutron | Ariadni | AY-600P | 1 | 49 | 3% | 94% | >1s² |
| Lutron | Contour | CT-103P | 1 | 82 | 10% | 94% | <1s |
| Lutron | Contour | CT-600P | 1 | 49 | 10% | 95% | <1s |
| Lutron Rotary | D-600P | 1 | 49 | 10% | 96% | <1s | |
| Lutron | Diva | DV-600P | 1 | 49 | 10% | 96% | <1s |
| Lutron | Glyder | GL-600P | 1 | 49 | 10% | 96% | <1s |
| Lutron | Lumia | LG-600PH | 1 | 49 | 10% | 93% | <1s |
| Lutron | Maestro | MA600 | 1 | 49 | 10% | 94% | <1s |
| Lutron | Nova | N-600 | 1 | 49 | 10% | 96% | <1s |
| Lutron | Skylark | S-600P | 1 | 49 | 10% | 96% | <1s |
| Lutron | Ariadni | AYLV-600P | 1 | 37 | 2% | 97% | >1s³ |
| Lutron Glyder | GLV-600 | 1 | 37 | 10% | 97% | <1s | |
| Lutron | Diva | DVLV-600P | 1 | 37 | 1% | 96% | >1s³ |
| Lutron | Skylark | SLV-600P | 1 | 37 | 10% | 97% | <1s |
| Lutron | Nova | NTLV-600 | 1 | 37 | 3% | 93% | <1s |
| Lutron | Nova | NT-600 | 1 | 49 | 1% | 92% | >1s⁴ |
Low End Start Time Notes:
- ¹ 3s Start Time at Low End Dimming
- ² 5s Start Time at Low End Dimming
- ³ 7s Start Time at Low End Dimming
- ⁴ 8s Start Time at Low End Dimming
Dimmer Notes
- Start time is measured at the lowest dimmer setting.
- Some LED dimmers feature a "rapid start" design to provide a momentary power boost to LED and CFL lamps during start-up. This "flash" may be more noticeable when the dimmer is at a low setting. Dimmers with adjustable "rapid start" capability (e.g., DAL06P, AAL06P, TAL06P) offer a solution. Refer to product specifications online at www.eaton.com/lighting for more details.
Dimming Guide Disclaimer
Brand Trademarks: Leviton®, Lutron®, Lightolier®, and Hubbell® are registered trademarks of their respective companies and are not associated with EATON. Legrand® and Pass & Seymour® are registered trademarks of Legrand®.
Testing and Certification: EATON's testing is not a substitute for independent laboratory certification. Refer to manufacturer specifications for details on product certifications and standards.
Product Performance: This list represents typical dimmers tested for performance with designated LED luminaires. Test data is based on marketplace samples. Performance may vary, and EATON makes no specific recommendations or warranties regarding product selection. Installers must ensure compliance with local and national electrical codes and follow dimmer manufacturer instructions.
Step-down Transformers
Application Note: H277, H347, and H347200 step-down transformers are qualified to drive multiple Halo LED on a single circuit in Non-IC construction. Using these transformers individually on each fixture in a single circuit is not recommended due to potential issues with inductive currents and reactive power. If used individually, circuits must be sized for lower power factor and increased apparent power.
H277, H347, and H347200 are UL/cUL listed for use with Halo recessed housings: H750T, H750TCP, H7T, H7TNB, H7RT.
Transformer Specifications:
- H277 (277V Step Down Transformer, 300VA): Steps 277V down to 120V. Attaches to junction box knockout. UL recognized Component for Halo Non-IC housings.
- H347 (347V Step Down Transformer, 75VA): Steps 347V down to 120V. Attaches to junction box knockout. CSA/UL Listed Component for Halo Non-IC housings.
- H347200 (347V Step Down Transformer, 200VA): Steps 347V down to 120V. Attaches to junction box knockout. CSA/UL Listed Component for Halo Non-IC housings.
Transformer Load Information:
- H277 (300VA): Max power consumption: 16W. Power consumption in OFF mode: 6.5W (secondary side), 16W (primary side ON). Use of a dimmer ahead of the transformer is not recommended.
- H347 (75VA): Max power consumption: 15W. Power consumption in OFF mode: 2.5W (secondary side), 15W (primary side ON). Use of a dimmer ahead of the transformer is not recommended.
- H347200 (200VA): Max power consumption: 28W. Power consumption in OFF mode: 9.2W (secondary side), 28W (primary side ON). Use of a dimmer ahead of the transformer is not recommended.
A table shows the maximum number of fixtures that can be powered by each transformer:
| Transformer | VA Rating | Max # of Fixtures |
|---|---|---|
| H277 | 300 | 24 |
| H347 | 75 | 6 |
| H347200 | 200 | 16 |
Diagrams illustrate wiring configurations for transformers with dimmers/switches on the 120V secondary, and switches on the 277V or 347V primary.
