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King Permanent Lighting 24V Outdoor Power Supply - 300W
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$104.99
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Built for installers. Used on real jobs.
This is the gear working contractors run on real rooflines. C9 and C7 LED bulbs, socket wire, clips, plugs, and complete pro light kits at contractor wholesale pricing. Most orders ship same day if placed before 2 PM ET. Free shipping over $349.
The 4-sentence answer
The King Permanent Lighting 24V Outdoor Power Supply 300W is the power foundation for smaller residential year-round permanent lighting installs — handles approximately 150-200 ft of LED strip without voltage drop. 24V is the residential price-efficient pick — lower per-foot install cost than 36V and no licensed electrician needed (low-voltage Class 2 install). Use this 300W supply on typical single-family suburban homes where the install length stays under ~200 ft total; step to the 36V Controller with 600W supply on larger residential and commercial properties needing ~500 ft of continuous run. Pairs with King Permanent 24V RGB LED strips, aluminum channel, and the rest of the King 24V hardware family for a complete app-controlled, year-round, multi-occasion install.
Verified specifications
Every value below is pulled from the printed bag label and the King Permanent cluster spec source. No marketing inflation.
| System voltage | 24V DC output (low-voltage Class 2 — no licensed electrician needed for install) |
|---|---|
| Power rating | 300W |
| Run length supported | ~150-200 ft of King 24V LED strip without voltage drop |
| Input voltage | 120V AC line voltage from standard outdoor GFCI outlet |
| Installation | Outdoor-rated enclosure; pairs with King Permanent Lighting Outdoor Enclosure Box |
| System compatibility | King Permanent Lighting 24V system only — NOT cross-compatible with 36V hardware |
| Voltage-drop margin | Designed for typical residential install lengths; for runs over 200 ft consider 36V system or 24V with signal booster |
| Lifespan | Permanent install — mounted once, operated year-round across multiple occasions |
| Use case | Holidays + sports games + parties + accent lighting on the same hardware |
Who this power supply is built for
Residential homeowner tired of annual install/take-down labor
The volume use case for King Permanent. Single-family suburban homes with ~100-200 ft of typical roofline coverage hit the 24V 300W sweet spot. Mount the aluminum channel under the eaves once, run the LED strip through it, plug into the 24V Outdoor Power Supply, and operate via smartphone app for holidays, game days, parties, and everyday accent — no annual labor cycle.
Contractor add-on service — seasonal expanding into permanent install
Seasonal Christmas-light contractors adding permanent lighting as a year-2 upsell. The 24V system is the easier-to-install voltage tier (no licensed electrician needed for low-voltage Class 2). 300W power supply is the residential anchor SKU — stock it as the foundation hardware for residential bids and step to 36V for larger commercial work.
Smaller residential cottage / bungalow installs
Cottage-style homes with shorter rooflines (under ~150 ft total run) where 24V coverage is more than adequate. The 300W supply leaves headroom for adding accent channels (porch, balcony, garage door) on the same supply without exceeding the run-length budget. Pair with a 36V signal booster if the property expands later.
What this power supply works with
- LED strip
- King Permanent Lighting 24V RGB LED strip ONLY. NOT compatible with King 36V LED strip — the voltage spec is different and the 36V strip will under-light on 24V power. Shop King 24V LED strip
- Channel + mounting hardware
- King Permanent Lighting aluminum channel for concealed under-eave install. Channel screws + protective loom for low-voltage wire runs through the property. The 24V strip mounts inside the channel; the channel mounts to the soffit or eave.
- Controllers
- King 24V system uses a 24V controller (paired separately). The 24V controller drives RGB color, animation sequences, scheduling, and smartphone app control. NOT the 36V controller (that’s for the 36V system). Shop King 24V controllers
- Extension and routing
- King Permanent Lighting 24V extension cables for routing through soffits, attic, or behind facia. Y connectors split runs into multiple zones from one supply. Signal boosters extend runs beyond the 150-200 ft voltage-drop margin without stepping to 36V.
- Will NOT work with
- King Permanent Lighting 36V hardware (different voltage system — not cross-compatible). Generic 24V LED strip from other manufacturers (the King controller protocols are King-specific). C9 / C7 / mini light Christmas systems (those are 120V AC line voltage, not low-voltage DC).
24V 300W Power Supply vs 36V Controller + 600W
| Spec | 24V 300W Supply (this product) | 36V Controller + 600W Supply |
|---|---|---|
| System voltage | 24V DC | 36V DC |
| Power output | 300W | 600W (built into 36V controller) |
| Run length supported | ~150-200 ft | ~500 ft single run |
| Licensed electrician needed | No (low-voltage Class 2) | No (low-voltage Class 2) |
| Best for | Single-family residential, cottage, bungalow | Larger residential, commercial, multi-zone |
| Voltage drop margin | Tight at 200 ft; use signal booster for longer | Comfortable to 500 ft single run |
| Per-foot cost | Lower (smaller hardware tier) | Higher (larger system) |
| Includes controller | No (separate 24V controller required) | Yes (built-in 36V controller with 600W supply) |
See all King Permanent hardware side by side →
How to install
- Mount the outdoor enclosure near a GFCI outlet. The King Permanent 24V Outdoor Power Supply lives inside the King Outdoor Enclosure Box. Mount the box on a sheltered exterior wall within reach of a GFCI outlet (typically near the garage or back porch). Outlet must be a GFCI — standard outlets aren’t code-compliant for outdoor permanent install.
- Wire the 24V output to the controller, then to the LED strip channel. The 300W supply’s 24V DC output feeds the King 24V controller. The controller drives the LED strip through extension cables routed inside protective loom to the aluminum channel mounted under the eaves. Total run length from supply to far end of LED strip must stay under ~200 ft for voltage-drop tolerance — add a signal booster mid-run if approaching that limit.
- Pair the controller to the smartphone app and program the schedules. The 24V controller (separate product) handles the RGB color, animation patterns, and schedule programming. Pair via WiFi or Bluetooth per the controller’s instructions. Set holiday color presets (red/green for Christmas, red/white/blue for July 4, orange/purple for Halloween) plus everyday accent (warm white). The same hardware drives all occasions year-round.
Certifications and compliance
- Low-voltage Class 2 install — 24V DC output is below the NEC Class 2 threshold (under 60V DC). No licensed electrician required for the LED strip + channel install — the only line-voltage connection is plugging the supply into a GFCI outlet.
- Outdoor-rated enclosure — The supply lives inside the King Outdoor Enclosure Box, rated for direct outdoor exposure. The supply itself isn’t designed for direct rain contact — the enclosure protects it.
- GFCI outlet requirement — The supply MUST be plugged into a GFCI outlet for outdoor code compliance. Standard outlets aren’t acceptable; this is a 2026 NEC requirement for outdoor low-voltage installs.
- King Permanent system compatibility — Designed and tested as part of the King Permanent Lighting 24V system. Pair only with King 24V hardware for warranty coverage.
Warranty
Manufacturer warranty on King Permanent Lighting 24V Outdoor Power Supply 300W from Christmas Lights HQ. Covers supply failure, output voltage drift, and premature electronic component failure under normal install conditions.
Not covered: supplies installed outside the King Outdoor Enclosure Box (direct rain exposure voids warranty), supplies cross-paired with 36V hardware (voltage mismatch damages internal circuitry), supplies plugged into non-GFCI outlets, animal damage to the supply or wiring, water ingress at the box gasket from improper enclosure installation.
Full warranty terms → | Consultation for permanent install planning →
Questions contractors actually ask
24V vs 36V — which should I install?
By install length and voltage-drop tolerance. 24V is the price-efficient residential pick for installs under ~200 ft total run — cottage, bungalow, typical single-family suburban. 36V handles up to ~500 ft on a single run without voltage drop — larger residential, commercial, multi-zone installs. If the install is borderline 200-300 ft, 24V with a signal booster works but 36V is the cleaner spec.
Do I need a licensed electrician to install King 24V?
No. 24V DC output is below the NEC Class 2 threshold (under 60V DC), so the LED strip and channel install is a low-voltage Class 2 install. The only line-voltage connection is plugging the supply into an existing outdoor GFCI outlet — same as plugging in any appliance. No code-compliance work requires an electrician.
How far can the app control reach the system?
The smartphone app controls the King 24V controller (separate product from this supply). Controller-to-phone range depends on the controller’s communication protocol (WiFi via home router for indoor-to-anywhere; Bluetooth for in-property range only). Most residential properties use the WiFi controller for full remote control from work, vacation, or anywhere with internet.
What’s the run length per 300W power supply?
~150-200 ft of King 24V LED strip without voltage drop. The exact length depends on the LED strip density (LEDs per foot) and the install run shape. For shorter runs (under 150 ft), the supply has comfortable headroom. For 200-300 ft runs, add a King signal booster mid-run to extend voltage tolerance. Over 300 ft, step to the 36V system with 600W controller.
Can I mount the aluminum channel on shingle vs facia?
Facia is the standard mounting surface — aluminum channel screws into facia trim along the eave line. The LED strip mounts inside the channel; the channel mounts to the facia with channel screws. NOT typically mounted directly on shingle — channels need a solid wood facia or facia trim to screw into. If the property has no facia, the channel mounts to soffit or other solid trim under the roofline.
Is removal possible at end of life?
Yes — aluminum channel unscrews from facia, LED strip slides out of the channel, the entire system uninstalls cleanly. The screw holes in the facia are small (typical #6 or #8 screw) and patchable with wood filler + paint. Permanent install doesn’t mean PERMANENT — it means “mounted once and operated year-round” vs the seasonal install/takedown cycle.
What controller pairs with this supply?
The King Permanent Lighting 24V controller (separate product). The 24V controller handles RGB color, animation patterns, schedule programming, and WiFi or Bluetooth app pairing. Don’t cross-pair with the 36V controller — voltage mismatch damages internal circuitry on both controller and supply.
How does the 5-year cost compare to seasonal install/takedown labor?
Year 1 install cost is higher (hardware purchase + one-time install labor). Years 2-5 cost approaches zero (just electricity to operate, plus occasional bulb / channel adjustment). Compare to seasonal C9 install: hardware reuses across years but labor charge is 100% annual. Most contractors find King Permanent breaks even with seasonal install over 3-5 years for residential and 2-3 years for commercial (where seasonal labor cost is higher).
Customer reviews
Complete the King Permanent 24V system
Orders placed before 2 PM ET ship the same day. Free shipping on orders over $349. Most orders arrive in 2-5 business days via UPS or FedEx Ground.