HALO LT Series Dimming Guide
The LT Series provides continuous dimming with reverse or forward phase cut dimmers.
LT Series Models
The LT Series includes the following models:
- LT4 5CCT: LT4069FS1EWH, LT4099FS1EWH
- LT56 5CCT: LT56079FS1EWH, LT56129FS1EWH
Phase Control Dimming
This section details phase control dimming for HALO LED Downlights.
Diagram Description: A diagram illustrates the concept of phase control dimming. It shows a 120V AC power source connected to a dimmer, which then outputs a dimmed AC signal to multiple Halo LED Downlights. The diagram visually represents how the dimmer modulates the power supplied to the fixtures.
Dimmer Compatibility Tables
The following tables list compatible dimmers for specific LT Series models. These tables are for reference only.
LT4069FS1EWH (600 Lumen) Dimmer Compatibility
| Dimmer Make | Dimmer Series | Dimmer Model # | Min Luminaires (per circuit) | Max Recommended Luminaires (per circuit) | Min Dimming percentage (%) | Max Dimming percentage (%) | Low End Start Time |
|---|---|---|---|---|---|---|---|
| Leviton | SureSlide | 6674 | 1 | 17 | 3% | 98% | <1s |
| Leviton | SureSlide | DSL06-ILZ | 1 | 69 | 3% | 99% | <1s |
| Leviton | Illumatech | IPL06-ILZ | 1 | 17 | 3% | 98% | <1s |
| Leviton | Decora | TSL06-1LW | 1 | 57 | 3% | 98% | <1s |
| Leviton | SureSlide | RDL06-10Z | 1 | 69 | 4% | 99% | <1s |
| Lutron | Toggler | TG-600P | 1 | 69 | 1% | 97% | >1s |
| Lutron | Nova T | NTFTU-6A | 1 | 69 | 15% | 99% | <1s |
| Lutron | Toggler | TGCL-153P | 1 | 17 | 9% | 97% | <1s |
| Lutron | Lumea | LG600P | 1 | 69 | 0% | 98% | NA1 |
| EWD | Universal | TUL06P-C2 | 1 | 34 | 3% | 98% | <1s |
| EWD | Universal | SUL06P | 1 | 34 | 8% | 98% | <1s |
| Lutron | Skylark | SCL-153P-WH | 1 | 17 | 7% | 97% | <1s |
| Lutron | Diva | DVCL-153P | 1 | 17 | 8% | 96% | <1s |
| Leviton | Legrand | H703PTU | 1 | 34 | 9% | 100% | <1s |
| Leviton | Vizia | VZE04 | 1 | 46 | 5% | 99% | <1s |
| Leviton | Acenti | ATX10 | 1 | 115 | 3% | 98% | <1s |
| Lutron | Maestro | MAELV600 | 1 | 69 | 8% | 99% | <1s |
| Lutron | Faedra | FAELV500 | 1 | 57 | 6% | 99% | <1s |
| Lutron | Diva | DVELV303P | 1 | 34 | 3% | 98% | <1s |
| Lutron | Skylark | SELV300P | 1 | 34 | 2% | 98% | <1s |
| EWD | Smart | AAL06 | 1 | 34 | 4% | 98% | <1s |
| Lightolier | Sunrise | ZP260QEW | 1 | 30 | 4% | 98% | <1s |
| Eaton | Skye | SF8AP | 1 | 110 | 7% | 99% | <1s |
| Eaton | React | R1061 | 1 | 69 | 0% | 99% | NA1 |
| Eaton | Devine | TAL06P | 1 | 34 | 3% | 99% | <1s |
| Eaton | Toggle | DAL06P | 1 | 34 | 3% | 99% | <1s2 |
| Eaton | Skye | SAL06P | 1 | 34 | 3% | 99% | <1s |
| Eaton | Skye | SLC03P | 1 | 34 | 10% | 98% | <1s |
| Eaton | Devine | DLC03P | 1 | 34 | 10% | 99% | <1s |
| Lutron(PANEL) | LCP128 (TRIAC) | LP-RPM-4U-120 | 1 | 221 | 0% | 99% | NA1 |
| Lutron(PANEL) | LCP128 (ELV) | LP-RPM-4A-120 | 1 | 138 | 0% | 98% | NA1 |
| Ecospec(PANEL) | LDCM | LDCM-PL-120-277-010V-GR | 1 | 51 | 0% | 100% | NA1 |
| Greengate(Panel) | PD216 | PD216-AN10-120 | 1 | 221 | 1% | 100% | >1s |
| Lutron | Contour | CT-103P | 1 | 115 | 0% | 98% | NA1 |
| Lutron | Contour | CT-600P | 1 | 69 | 0% | 98% | NA1 |
| Lutron | Rotary | D-600P | 1 | 69 | 0% | 98% | NA1 |
| Lutron | Diva | DV-600P | 1 | 69 | 0% | 98% | NA1 |
| Lutron | Glyder | GL-600P | 1 | 69 | 0% | 98% | NA1 |
| Lutron | Lumia | LG-600PH | 1 | 69 | 0% | 98% | NA1 |
| Lutron | Nova | N-600 | 1 | 69 | 0% | 99% | NA1 |
| Lutron | Skylark | S-600P | 1 | 69 | 0% | 98% | NA1 |
| Lutron | Ariadni | AYLV-600P | 1 | 51 | 2% | 99% | >1s |
| Lutron | Glyder | GLV-600 | 1 | 51 | 0% | 99% | NA1 |
| Lutron | Diva | DVLV-600P | 1 | 51 | 1% | 98% | >1s |
| Lutron | Lumina | LG-103P | 1 | 115 | 1% | 98% | >1s |
| Lutron | Skylark | SLV-600P | 1 | 51 | 0% | 98% | NA1 |
| EWD | Universal | DUL06P-C7 | 1 | 34 | 4% | 98% | <1s |
| Lutron | Nova | NTLV-600 | 1 | 34 | 2% | 99% | <1s |
| Lutron | Nova | NT-600 | 1 | 51 | 0% | 99% | NA1 |
1 Dims to Off.
2 Flash at Start up.
LT4099FS1EWH (900 Lumen) Dimmer Compatibility
| Dimmer Make | Dimmer Series | Dimmer Model # | Min Luminaires (per circuit) | Max Recommended Luminaires (per circuit) | Min Dimming percentage (%) | Max Dimming percentage (%) | Low End Start Time |
|---|---|---|---|---|---|---|---|
| Leviton | SureSlide | 6674 | 1 | 12 | 5% | 98% | <1s |
| Leviton | SureSlide | DSL06-ILZ | 1 | 48 | 5% | 98% | <1s |
| Leviton | Illumatech | IPL06-ILZ | 1 | 12 | 4% | 98% | <1s |
| Leviton | Decora | TSL06-1LW | 1 | 40 | 4% | 98% | <1s |
| Leviton | SureSlide | RDL06-10Z | 1 | 48 | 2% | 99% | <1s |
| Lutron | Toggler | TG-600P | 1 | 48 | 3% | 98% | >1s |
| Lutron | Nova T | NTFTU-6A | 1 | 48 | 20% | 99% | <1s |
| Lutron | Toggler | TGCL-153P | 1 | 12 | 3% | 98% | <1s |
| Lutron | Lumea | LG600P | 1 | 48 | 0% | 98% | >1s1 |
| EWD | Universal | TUL06P-C2 | 1 | 24 | 4% | 98% | <1s |
| EWD | Universal | SUL06P | 1 | 24 | 4% | 98% | <1s |
| Lutron | Skylark | SCL-153P-WH | 1 | 12 | 3% | 98% | <1s |
| Lutron | Diva | DVCL-153P | 1 | 12 | 3% | 98% | <1s |
| Lutron | Maestro | MACL-153-M | 1 | 12 | 3% | 97% | <1s |
| Leviton | Legrand | H703PTU | 1 | 24 | 8% | 100% | <1s |
| Leviton | Vizia | VZE04 | 1 | 32 | 8% | 99% | <1s |
| Leviton | Acenti | ATX10 | 1 | 81 | 4% | 98% | <1s |
| Lutron | Maestro | MAELV600 | 1 | 48 | 8% | 98% | <1s |
| Lutron | Faedra | FAELV500 | 1 | 40 | 8% | 98% | <1s |
| Lutron | Diva | DVELV303P | 1 | 24 | 4% | 98% | <1s |
| Lutron | Skylark | SELV300P | 1 | 24 | 4% | 98% | <1s |
| EWD | Smart | AAL06 | 1 | 24 | 6% | 98% | <1s |
| Lightolier | Sunrise | ZP260QEW | 1 | 21 | 5% | 98% | <1s |
| Eaton | Skye | SF8AP | 1 | 78 | 16% | 99% | <1s |
| Eaton | Devine | DE06P | 1 | 48 | 3% | 97% | <1s |
| Eaton | React | R1061 | 1 | 48 | 0% | 99% | NA1 |
| Eaton | Devine | TAL06P | 1 | 24 | 3% | 99% | <1s |
| Eaton | Toggle | DAL06P | 1 | 24 | 3% | 99% | <1s |
| Eaton | Skye | SAL06P | 1 | 24 | 4% | 99% | <1s2 |
| Eaton | Skye | SLC03P | 1 | 24 | 3% | 99% | <1s |
| Eaton | Devine | DLC03P | 1 | 24 | 3% | 99% | <1s |
| Eaton | Toggle | T1061 | 1 | 48 | 1% | 97% | <1s |
| Lutron(PANEL) | LCP128 (TRIAC) | LP-RPM-4U-120 | 1 | 156 | 3% | 99% | <1s |
| Lutron(PANEL) | LCP128 (ELV) | LP-RPM-4A-120 | 1 | 97 | 5% | 98% | <1s |
| Ecospec(PANEL) | LDCM | LDCM-PL-120-277-010V-GR | 1 | 36 | 0% | 100% | NA1 |
| Greengate (Panel) | PD216 | PD216-AN10-120 | 1 | 156 | 3% | 100% | <1s |
| Lutron | Contour | CT-103P | 1 | 81 | 1% | 98% | <1s |
| Lutron | Contour | CT-600P | 1 | 48 | 1% | 98% | >1s |
| Lutron | Rotary | D-600P | 1 | 48 | 0% | 98% | NA1 |
| Lutron | Diva | DV-600P | 1 | 48 | 0% | 98% | >1s1 |
| Lutron | Glyder | GL-600P | 1 | 48 | 0% | 98% | >1s1 |
| Lutron | Lumia | LG-600PH | 1 | 48 | 0% | 98% | >1s1 |
| Lutron | Nova | N-600 | 1 | 48 | 1% | 99% | <1s |
| Lutron | Skylark | S-600P | 1 | 48 | 0% | 98% | >1s1 |
| Lutron | Ariadni | AYLV-600P | 1 | 36 | 5% | 98% | <1s |
| Lutron | Glyder | GLV-600 | 1 | 36 | 2% | 99% | <1s |
| Lutron | Diva | DVLV-600P | 1 | 36 | 3% | 98% | <1s |
| Lutron | Lumina | LG-103P | 1 | 81 | 4% | 98% | <1s |
| Lutron | Skylark | SLV-600P | 1 | 36 | 2% | 98% | >1s |
| EWD | Universal | DUL06P-C7 | 1 | 24 | 5% | 98% | <1s |
| Lutron | Nova | NTLV-600 | 1 | 24 | 5% | 99% | <1s |
| Lutron | Nova | NT-600 | 1 | 36 | 2% | 99% | <1s |
1 Dims to Off.
2 Flash at Start up.
LT56079FS1EWH (750 Lumen) Dimmer Compatibility
| Dimmer Make | Dimmer Series | Dimmer Model # | Min Luminaires (per circuit) | Max Recommended Luminaires (per circuit) | Min Dimming percentage (%) | Max Dimming percentage (%) | Low End Start Time |
|---|---|---|---|---|---|---|---|
| Leviton | SureSlide | 6674 | 1 | 14 | 3% | 99% | <1s |
| Leviton | SureSlide | DSL06-ILZ | 1 | 59 | 3% | 99% | <1s |
| Leviton | Illumatech | IPL06-ILZ | 1 | 14 | 3% | 98% | <1s |
| Leviton | Decora | TSL06-1LW | 1 | 49 | 3% | 99% | <1s |
| Leviton | SureSlide | RDL06-10Z | 1 | 59 | 2% | 99% | <1s |
| Lutron | Toggler | TG-600P | 1 | 59 | 2% | 98% | >1s |
| Lutron | Nova T | NTFTU-6A | 1 | 59 | 16% | 99% | <1s |
| Lutron | Toggler | TGCL-153P | 1 | 14 | 8% | 98% | <1s |
| Lutron | Lumea | LG600P | 1 | 59 | 0% | 98% | NA1 |
| EWD | Universal | TUL06P-C2 | 1 | 29 | 9% | 98% | <1s |
| EWD | Universal | SUL06P | 1 | 29 | 8% | 98% | <1s |
| Lutron | Skylark | SCL-153P-WH | 1 | 14 | 7% | 98% | <1s |
| Lutron | Diva | DVCL-153P | 1 | 14 | 9% | 98% | <1s |
| Lutron | Maestro | MACL-153-M | 1 | 14 | 8% | 91% | <1s |
| Leviton | Legrand | H703PTU | 1 | 29 | 10% | 100% | <1s |
| Leviton | Vizia | VZE04 | 1 | 39 | 6% | 99% | <1s |
| Leviton | Acenti | ATX10 | 1 | 99 | 9% | 98% | <1s |
| Lutron | Maestro | MAELV600 | 1 | 59 | 6% | 99% | <1s |
| Lutron | Faedra | FAELV500 | 1 | 49 | 6% | 99% | <1s |
| Lutron | Diva | DVELV303P | 1 | 29 | 3% | 98% | <1s |
| Lutron | Skylark | SELV300P | 1 | 29 | 3% | 98% | <1s |
| EWD | Smart | AAL06 | 1 | 29 | 4% | 99% | <1s |
| Lightolier | Sunrise | ZP260QEW | 1 | 25 | 9% | 99% | <1s |
| Eaton | Skye | SF8AP | 1 | 95 | 6% | 99% | <1s |
| Eaton | React | R1061 | 1 | 59 | 0% | 99% | NA1 |
| Eaton | Devine | TAL06P | 1 | 29 | 7% | 99% | <1s |
| Eaton | Toggle | DAL06P | 1 | 29 | 8% | 100% | <1s |
| Eaton | Skye | SAL06P | 1 | 29 | 7% | 99% | <1s2 |
| Eaton | Skye | SLC03P | 1 | 29 | 10% | 99% | <1s |
| Eaton | Devine | DLC03P | 1 | 29 | 7% | 99% | <1s |
| Lutron(PANEL) | LCP128 (TRIAC) | LP-RPM-4U-120 | 1 | 190 | 0% | 99% | NA1 |
| Lutron(PANEL) | LCP128 (ELV) | LP-RPM-4A-120 | 1 | 119 | 10% | 99% | <1s |
| Ecospec(PANEL) | LDCM | LDCM-PL-120-277-010V-GR | 1 | 44 | 0% | 100% | NA1 |
| Greengate (Panel) | PD216 | PD216-AN10-120 | 1 | 190 | 1% | 100% | >1s |
| Lutron | Contour | CT-103P | 1 | 99 | 0% | 98% | >1s1 |
| Lutron | Contour | CT-600P | 1 | 59 | 0% | 98% | NA1 |
| Lutron | Rotary | D-600P | 1 | 59 | 0% | 98% | NA1 |
| Lutron | Diva | DV-600P | 1 | 59 | 0% | 98% | NA1 |
| Lutron | Glyder | GL-600P | 1 | 59 | 0% | 98% | NA1 |
| Lutron | Lumia | LG-600PH | 1 | 59 | 0% | 98% | NA1 |
| Lutron | Nova | N-600 | 1 | 59 | 0% | 99% | NA1 |
| Lutron | Skylark | S-600P | 1 | 59 | 0% | 98% | NA1 |
| Lutron | Ariadni | AYLV-600P | 1 | 44 | 2% | 99% | >1s |
| Lutron | Glyder | GLV-600 | 1 | 44 | 0% | 99% | NA1 |
| Lutron | Diva | DVLV-600P | 1 | 44 | 1% | 98% | >1s |
| Lutron | Lumina | LG-103P | 1 | 99 | 1% | 98% | >1s |
| Lutron | Skylark | SLV-600P | 1 | 44 | 0% | 98% | >1s1 |
| EWD | Universal | DUL06P-C7 | 1 | 29 | 8% | 98% | <1s |
| Lutron | Nova | NTLV-600 | 1 | 29 | 1% | 99% | <1s |
| Lutron | Nova | NT-600 | 1 | 44 | 0% | 99% | <1s1 |
1 Dims to Off.
2 Flash at Start up.
LT56129FS1EWH (1200 Lumen) Dimmer Compatibility
| Dimmer Make | Dimmer Series | Dimmer Model # | Min Luminaires (per circuit) | Max Recommended Luminaires (per circuit) | Min Dimming percentage (%) | Max Dimming percentage (%) | Low End Start Time |
|---|---|---|---|---|---|---|---|
| Leviton | SureSlide | 6674 | 1 | 9 | 3% | 98% | <1s |
| Leviton | SureSlide | DSL06-ILZ | 1 | 39 | 4% | 98% | <1s |
| Leviton | Illumatech | IPL06-ILZ | 1 | 9 | 3% | 98% | <1s |
| Leviton | Decora | TSL06-1LW | 1 | 32 | 3% | 98% | <1s |
| Leviton | SureSlide | RDL06-10Z | 1 | 39 | 2% | 99% | <1s |
| Lutron | Toggler | TG-600P | 1 | 39 | 2% | 97% | >1s |
| Lutron | Nova T | NTFTU-6A | 1 | 39 | 17% | 99% | <1s |
| Lutron | Toggler | TGCL-153P | 1 | 9 | 10% | 98% | <1s |
| Lutron | Lumea | LG600P | 1 | 39 | 0% | 98% | >1s1 |
| EWD | Universal | TUL06P-C2 | 1 | 19 | 3% | 98% | <1s |
| EWD | Universal | SUL06P | 1 | 19 | 9% | 98% | <1s |
| Lutron | Skylark | SCL-153P-WH | 1 | 9 | 8% | 98% | <1s |
| Lutron | Diva | DVCL-153P | 1 | 9 | 9% | 97% | <1s |
| Lutron | Maestro | MACL-153-M | 1 | 9 | 9% | 91% | <1s |
| Leviton | Legrand | H703PTU | 1 | 19 | 8% | 100% | <1s |
| Leviton | Vizia | VZE04 | 1 | 26 | 6% | 99% | <1s |
| Leviton | Acenti | ATX10 | 1 | 65 | 3% | 98% | <1s |
| Lutron | Maestro | MAELV600 | 1 | 39 | 6% | 98% | <1s |
| Lutron | Faedra | FAELV500 | 1 | 32 | 6% | 98% | <1s |
| Lutron | Diva | DVELV303P | 1 | 19 | 3% | 98% | <1s |
| Lutron | Skylark | SELV300P | 1 | 19 | 3% | 98% | <1s |
| EWD | Smart | AAL06 | 1 | 19 | 5% | 98% | <1s |
| Lightolier | Sunrise | ZP260QEW | 1 | 17 | 6% | 99% | <1s |
| Eaton | Skye | SF8AP | 1 | 62 | 14% | 99% | <1s |
| Eaton | React | R1061 | 1 | 39 | 0% | 99% | NA1 |
| Eaton | Devine | TAL06P | 1 | 19 | 9% | 99% | <1s |
| Eaton | Toggle | DAL06P | 1 | 19 | 9% | 99% | <1s |
| Eaton | Skye | SAL06P | 1 | 19 | 8% | 99% | <1s |
| Eaton | Skye | SLC03P | 1 | 19 | 10% | 98% | <1s |
| Eaton | Devine | DLC03P | 1 | 19 | 10% | 98% | <1s |
| Lutron(PANEL) | LCP128 (TRIAC) | LP-RPM-4U-120 | 1 | 125 | 10% | 99% | <1s |
| Lutron(PANEL) | LCP128 (ELV) | LP-RPM-4A-120 | 1 | 78 | 10% | 98% | <1s |
| Ecospec(PANEL) | LDCM | LDCM-PL-120-277-010V-GR | 1 | 29 | 0% | 99% | NA1 |
| Greengate (Panel) | PD216 | PD216-AN10-120 | 1 | 125 | 2% | 100% | <1s |
| Lutron | Contour | CT-103P | 1 | 65 | 0% | 98% | >1s1 |
| Lutron | Contour | CT-600P | 1 | 39 | 0% | 98% | >1s1 |
| Lutron | Rotary | D-600P | 1 | 39 | 0% | 97% | NA1 |
| Lutron | Diva | DV-600P | 1 | 39 | 0% | 98% | NA1 |
| Lutron | Glyder | GL-600P | 1 | 39 | 0% | 98% | NA1 |
| Lutron | Lumia | LG-600PH | 1 | 39 | 0% | 98% | NA1 |
| Lutron | Nova | N-600 | 1 | 39 | 0% | 99% | NA1 |
| Lutron | Skylark | S-600P | 1 | 39 | 0% | 98% | NA1 |
| Lutron | Ariadni | AYLV-600P | 1 | 29 | 0% | 98% | <1s1 |
| Lutron | Glyder | GLV-600 | 1 | 29 | 1% | 98% | >1s |
| Lutron | Diva | DVLV-600P | 1 | 29 | 1% | 98% | >1s |
| Lutron | Lumina | LG-103P | 1 | 65 | 1% | 98% | >1s |
| Lutron | Skylark | SLV-600P | 1 | 29 | 0% | 98% | >1s1 |
| EWD | Universal | DUL06P-C7 | 1 | 19 | 3% | 97% | <1s |
| Lutron | Nova | NTLV-600 | 1 | 19 | 3% | 98% | <1s |
| Lutron | Nova | NT-600 | 1 | 29 | 0% | 99% | <1s1 |
1 Dims to Off.
Dimmer Notes & Disclaimer
Dimmer Notes
- Start time is measured at the lowest dimmer setting.
- Some LED dimmers have a "rapid start" design used to provide a momentary power boost to 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 with EATON dimmers which provide adjustment capability of the "rapid start": Devine (DAL06P), Accell (AAL06P), and Trace (TAL06P).
Dimming Guide Disclaimer
This document provides a representative list of typical dimmers as tested by Cooper Lighting Solutions 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 on factors outside of Cooper Lighting Solutions' control. The specifications of these dimming controls and their conditions of use may change without notice to Cooper Lighting Solutions or any other user. Cooper Lighting Solutions 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.
Trademark Acknowledgement: Leviton® is a registered trademark of Leviton Manufacturing Co. Inc.; Lutron® is a registered trademark of Lutron Electronics Co. Inc.; Lightolier® is a registered trademark of Philips Lighting; Hubbell® is a registered trademark of Hubbell Incorporated; Legrand® and Pass & Seymour® are registered trademarks of Legrand®; Eaton® is a registered trademark of Eaton Corporation. These companies and their tradenames, trademarks or brands, where noted, are associated with their respective company and are not associated with Cooper Lighting Solutions.
Testing Disclaimer: Testing conducted by Cooper Lighting Solutions 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.
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. 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.
Transformer Types
- H277: Steps 277 line voltage down to 120 volts. 300VA rated. Attaches to the junction box of the first fixture. UL recognized Component for Halo Non-IC housings.
- H347 & H347200: Steps 347 line voltage down to 120 volts. H347 is 75VA rated; H347200 is 200VA rated. Attaches to the junction box of the first fixture. CSA/UL Listed Component for Halo Non-IC housings.
Transformer Load Information
H277 (300VA)
- Full loading consumes a maximum of 16W of power.
- On secondary (120V) side: 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.
- On primary (277V) side: 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)
H347 (75VA)
- Full loading consumes a maximum of 15W of power.
- On secondary (120V) side: 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.
- On primary (347V) side: 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)
H347200 (200VA)
- Full loading on 120V side consumes a maximum of 28W of power.
- On secondary (120V) side: 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.
- On primary (347V) side: power is consumed only in "ON" mode to a maximum of 28W under full loading.
- On primary (277V) side: 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)
Transformer Dimensions
H277: 277V Step Down Transformer, 300VA. Dimensions: 2-3/16" [56mm] height, 4-3/16" [106mm] width.
H347: 347V Step Down Transformer, 75VA. Dimensions: 2-1/2" [63mm] height, 2-3/4" [70mm] width.
H347200: 347V Step Down Transformer, 200VA. Dimensions: 2-3/16" [56mm] height, 4-3/4" [121mm] width.
LT56 Retrofit LED Downlight Series - Transformer Compatibility
| Transformer | VA Rating | Max # of Fixtures (600 Series) | Max # of Fixtures (900 Series) |
|---|---|---|---|
| H277 | 300 | 24 | 16 |
| H347 | 75 | 6 | 4 |
| H347200 | 200 | 16 | 10 |
Wiring Diagrams
Transformer with Dimmer/Switch on 120V Secondary
Diagram Description: This diagram shows a transformer connected to a 277V or 347V primary power source (Hot, Neutral, Ground). The transformer steps down the voltage to 120V. A dimmer or switch is connected to the 120V secondary side, controlling multiple LED loads. A note indicates that dimmer neutral connection is typical with some dimmers.
Transformer with Switch on 277V Primary
Diagram Description: This diagram illustrates a switch on the 277V primary side of a transformer. The transformer steps down the voltage to 120V for powering LED fixtures. A warning states that using a dimmer on the primary side is not recommended.
Transformer with Switch on 347V Primary
Diagram Description: This diagram shows a switch on the 347V primary side of a transformer. The transformer steps down the voltage to 120V for powering LED fixtures. A warning states that using a dimmer on the primary side is not recommended.
