Christmas light visualizer / Styles / Retro multicolor C9
Christmas light style
Retro multicolor C9 Christmas lights on a house
Retro multicolor means large C9 bulbs in mixed red, green, blue, orange and yellow along the roof edge. It is the nostalgic look most people picture from childhood.
Retro multicolor C9 on a sample house. Mock-up from Pexels #3958958 (Pexels License).
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Retro multicolor C9: what the sources say
- ENERGY STAR says many of its certified light strings use LED technology, which is exceptionally energy efficient when producing individual colors.1
- The Department of Energy says it costs $0.27 to light a 6-foot tree for 12 hours a day for 40 days with LEDs, compared to $10 for incandescent lights.2
- The CPSC advises using only newer lights that have thicker wiring and safety fuses to prevent the wires from overheating.3
- ENERGY STAR certified decorative light strings use 92% less energy than conventional incandescent strands.4
Verdict. Best for a home with brick, white trim or a porch that can carry loud color; it fails on dark siding or beside a neighbor’s warm-white house, where the mixed colors read as clutter rather than nostalgia.
Sources
Many ENERGY STAR light strings feature LED technology, which are exceptionally energy efficient when producing individual colors.
(word for word, each from energystar.gov)It only costs $0.27 to light a 6-foot tree for 12 hours a day for 40 days with LEDs compared to $10 for incandescent lights.
(word for word, each from energy.gov)Use only newer lights that have thicker wiring and safety fuses to prevent the wires from overheating.
(word for word, each from cpsc.gov)ENERGY STAR certified decorative light strings consume 92% less energy than conventional incandescent lights strands.
(word for word, each from energystar.gov)
Retro multicolor C9: bulbs, cost and effort
| Bulbs | Multicolor LED C9, ceramic-look |
|---|---|
| DIY cost | $135 to $230 for an 80 to 160 ft roofline ($227 at 120 ft) |
| Pro install | $450 to $950 typical |
Parts list for a 120 ft roofline
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| Part | Qty | Each | Est. |
|---|---|---|---|
| C9 LED string, multicolor, 100 ft | 2 | $62 | $124 |
| Gutter and shingle clips, 100 pack | 2 | $14 | $28 |
| Outdoor extension cord, 25 ft, 16/3 | 3 | $15 | $45 |
| Outdoor timer or smart plug | 1 | $20 | $20 |
| Spare bulbs and end plugs | 1 | $10 | $10 |
| Estimated total | $227 | ||
Rough 2026 US prices; links search Amazon.
How to DIY retro multicolor c9 lights
- Buy ceramic-look LED C9 strings so the colors read as warm, not neon.
- Clip along the gutter and wrap each porch post.
- Plug into a timer set for dusk to 11 pm.
Retro multicolor C9: common questions
What are retro multicolor c9 Christmas lights?
Retro multicolor means large C9 bulbs in mixed red, green, blue, orange and yellow along the roof edge. It is the nostalgic look most people picture from childhood.
How much do retro multicolor c9 Christmas lights cost?
DIY materials: $135 to $230 ($227 at 120 ft). Pro install: $450 to $950.
What lights do I need for the retro multicolor c9 look?
Multicolor LED C9, ceramic-look.