A black version for dark surfaces
This black variant of the SUNBEAMsystem Maxa keeps the 109 W rating and the junction box output of the standard version but aims for discretion. On an anthracite roof, a dark boat hatch or a black body panel, the module blends in instead of standing out. That is a matter of looks and nothing more: output depends on sunlight and orientation, not on colour.
Typical uses
A private owner could fit it on a van painted dark grey, on a small sailing boat or on the roof of a garden shed to keep a battery topped up. In a professional setting it can equip a black company vehicle or an isolated technical cabin, as long as the matching controller accepts the values below. The monocrystalline Sunpower cells are stated at 22.3% efficiency. Before buying cable or a controller, note the voltage and current figures listed further down, because they set the limits of what the rest of the circuit must handle.
Connecting through the box
Current leaves through a junction box with two 0.7 m cables (2 x 0.7 m). This layout leaves the routing up to you: you can shorten the path or extend the link with a solar cable whose cross-section is consistent with a current of 5.92 A.
Points to watch
- Never let the two free cables touch while the module is exposed to light.
- Keep the joint between the cables and any extension away from moisture.
- No protection rating is supplied, so refer to the manufacturer’s instructions.
Fitting sequence
- Choose a spot without lasting shade, away from aerials and roof rails.
- Clean and dry the surface.
- Secure the panel following the manufacturer’s advice, since it has no mounting eyelets.
- Wire the module to a charge controller, itself connected to the battery.
For any link to a household installation, call on a qualified installer.
The essentials
Black finish, junction box, 109 W: this is a flexible module for a small stand-alone system, with an output you can adapt to your own cabling.
Technical specifications
- Power: 109 W
- Cell type: monocrystalline Sunpower (22.3% efficiency)
- Open-circuit voltage (Voc): 21.70 V
- Voltage at maximum power (Vmp): 18.43 V
- Current at maximum power (Imp): 5.92 A
- Short-circuit current (Isc): 6.29 A
- Output type: Junction Box (2 x 0.7 m)
- Mounting eyelets: no
Dimensions and weight are not included in the data supplied.
Safety, cleaning and off-season storage
A black surface readily heats up in the sun: avoid touching it after long exposure and do not leave objects on it. Make sure the controller tolerates 21.70 V open-circuit. A soft cloth and clear water are enough to remove dust and deposits. Out of season, keep the module flat, away from excessive heat and sharp objects.
