VELUX VCS 4646 Solar-Powered Flat Roof Skylight (1275x1275mm)
The VELUX VCS 4646 is a solar-powered flat roof skylight designed for Australian homes with flat or low-pitch roofing. With a extra-large 1275x1275mm footprint, this solar opening skylight delivers energy-free daylight and ventilation, ideal for grand entertaining spaces, luxury master suites, and commercial applications.
Solar-Powered, Zero Wiring Required
This VELUX solar skylight is powered entirely by an integrated photovoltaic panel. It opens, closes, and vents via an included wall-mounted radio-frequency remote keypad. A built-in rain sensor automatically closes the skylight when precipitation is detected. No electrician, no wiring, no ongoing energy costs.
Key Features
- Integrated solar panel powers all motorised functions with zero electricity cost
- White painted interior wood frame with grey aluminium external cappings
- High-performance double glazing with NEAT self-cleaning coating
- Rain sensor for automatic closure during wet weather
- Wall-mounted RF remote keypad with simple open, close, and vent controls
- Approximately 75% heat block for year-round comfort
Built for Australian Flat Roofs
Every VELUX solar-powered flat roof skylight features laminated inner glass for added safety and meets Australian Standards. Designed for flat roofs up to 15 degrees pitch. Compatible with VELUX solar blinds (sold separately).
Singh Roofing Supplies is an authorised Australian supplier of genuine VELUX solar skylights with fast local shipping on the complete VCS range.

