Christmas light visualizer / Styles / Light projector
Christmas light style
Light projector Christmas lights on a house
A projector throws moving dots or snowflakes onto the front of the house from a stake in the lawn. It is the lowest-effort Christmas look, with no climbing.
Light projector on a sample house. Mock-up from Pexels #3958958 (Pexels License).
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Light projector: what the sources say
- An FDA document says projectors are limited to 5 milliwatts output power in the visible wavelength range from 400 to 710 nanometers.1
- The FDA limits laser products promoted for entertainment or demonstration to hazard Class IIIa.2
- The IEC says the first numeral of an IP code refers to protection against solid objects, rated on a scale from 0 (no protection) to 6 (no ingress of dust).3
Verdict. The fastest way to light a rental or a house with a steep roof, but the dots wash out on light siding and a projector with no real weather rating tends to fail by mid-December.
Sources
This means that projectors are limited to 5 milliwatts output power in the visible wavelength range from 400 to 710 nanometers.
(word for word, each from fda.gov)Laser products promoted for demonstration purposes are limited to hazard Class IIIa by FDA regulation 21 CFR 1040.11(c).
(word for word, each from fda.gov)The first numeral refers to the protection against solid objects and is rated on a scale from 0 (no protection) to 6 (no ingress of dust).
(word for word, each from iec.ch)
Light projector: bulbs, cost and effort
| Bulbs | LED laser or snowflake projector |
|---|---|
| DIY cost | $120 to $135 for an 80 to 160 ft roofline ($135 at 120 ft) |
| Pro install | $150 to $400 typical |
Parts list for a 120 ft roofline
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| Part | Qty | Each | Est. |
|---|---|---|---|
| Outdoor holiday laser or snowflake projector | 1 | $55 | $55 |
| Second projector or a mounting stake | 1 | $15 | $15 |
| Outdoor extension cord, 25 ft, 16/3 | 3 | $15 | $45 |
| Outdoor timer or smart plug | 1 | $20 | $20 |
| Estimated total | $135 | ||
Rough 2026 US prices; links search Amazon.
How to DIY light projector lights
- Place the stake 10 to 20 ft from the wall facing it.
- Aim and zoom until the pattern covers the facade.
- Plug into a timer.
Light projector: common questions
What are light projector Christmas lights?
A projector throws moving dots or snowflakes onto the front of the house from a stake in the lawn. It is the lowest-effort Christmas look, with no climbing.
How much do light projector Christmas lights cost?
DIY materials: $120 to $135 ($135 at 120 ft). Pro install: $150 to $400.
What lights do I need for the light projector look?
LED laser or snowflake projector.