Solar Cells for DIY Panels: Standard & Flexible | Mr. Watt

Solar cells

Solar cells are the beating heart of photovoltaic technology: essential components designed to transform sunlight into clean, renewable electricity. Thanks to the use of advanced materials and extremely high conversion efficiency, our catalog offers ideal solutions for every need.

  • For every project: Perfect for residential and industrial applications, as well as for DIY, model aircraft, and powering autonomous devices.

  • Different technologies: Choose between the high performance of monocrystalline cells and the reliability of polycrystalline ones, always ensuring long-lasting durability.

  • Complete assortment: From traditional rigid modules to the innovative options in our section dedicated to Flexible Solar Cells.

Discover our range at Mr. Watt and choose the photovoltaic components best suited to your energy needs!

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Subcategories

Flexible Solar Cells for DIY, RV & Marine
Flexibles
Custom-cut mono and poly solar cells in special formats
Monocrystalline and Polycrystalline
Green colored solar cell, tile, red, yellow, brown, marble
Colored
DIY photovoltaic kits - Solar energy for everyone
DIY photovoltaic kits
Bifacial monocrystalline solar cell 5BB 5.4Wp | MR WATT
New
Bifacial monocrystalline solar cell 5BB 5.4Wp
Bifacial monocrystalline solar cell in M2 format, 156.75 x 156.75 mm, 200 µm thick, with 5 silver busbars on the front and a contact grid on the rear: it generates power from both faces.
Front side up to 5.40 Wp and 22.1% efficiency at STC; the manufacturer states a rear-side gain of 5-20% with a suitable installation. Solderable with standard ribbon, designed for glass-glass modules or transparent backsheets.
€0.50 Tax escl.
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DIY Bifacial Solar Panel Kit 190W – 36 Cells | MR WATT
On sale!-5%New
DIY Bifacial Solar Panel Kit 190W – 36 Cells
36 bifacial monocrystalline 5BB solar cells, 156.75x156.75 mm (up to 5.4 Wp each on the front side) with 72 m of ribbon, a diode and a flux dispenser to build your own panel of about 190 W, 12V nominal, that also produces from the rear side.
A kit designed by MR WATT for glass-glass panels on pergolas, canopies, fences and balustrades, where light reaches both faces.
-5%
€33.00 €31.35 Tax escl.
DIY Solar Panel Kit 160W – 36 Mono Cells 6x6 | MR WATT
On sale!-10%New
DIY Solar Panel Kit 160W – 36 Mono Cells 6x6
In stock
36 grade-A monocrystalline 6"x6" (156x156 mm) solar cells with tab and bus wire, flux and a Schottky diode to build a 160 W, 12V nominal panel: the most power you can get from a single 36-cell string.
A kit designed by MR WATT, with spare cells included: for anyone with roof space who wants the most out of 12V.
-10%
€95.87 €86.28 Tax escl.
DIY Solar Panel Kit 320W – 72 Mono Cells 6x6 | MR WATT
On sale!-10%New
DIY Solar Panel Kit 320W – 72 Mono Cells 6x6
In stock
72 grade-A monocrystalline 6"x6" (156x156 mm) solar cells with tab and bus wire, flux and a Schottky diode to build 320 W of panels: a 24V nominal module the size of commercial panels, or two 160 W 12V panels.
A kit designed by MR WATT, with spare cells included: for cabins, mountain huts and small off-grid systems.
-10%
€172.80 €155.52 Tax escl.
DIY Solar Panel Kit 490W – 108 Mono Cells 6x6 | MR WATT
On sale!-10%New
DIY Solar Panel Kit 490W – 108 Mono Cells 6x6
In stock
108 grade-A monocrystalline 6"x6" (156x156 mm) solar cells with tab and bus wire, flux and a Schottky diode to build almost half a kilowatt of panels: three 12V panels of about 160 W or a single high-voltage string for an MPPT controller.
A kit designed by MR WATT, with spare cells included: the largest in the range, for small off-grid homes and cabins in regular use.
-10%
€238.89 €215.00 Tax escl.
DIY Solar Panel Kit 240W – 108 Mono Cells 3x6 | MR WATT
On sale!-10%New
DIY Solar Panel Kit 240W – 108 Mono Cells 3x6
In stock
108 grade-A half-cut monocrystalline 3"x6" (78x156 mm) solar cells with tab and bus wire, flux and a Schottky diode to build 240 W of panels: three 80 W 12V strips or a single high-voltage string for an MPPT controller.
A kit designed by MR WATT, with spare cells included: to cover a campervan roof full of obstacles or a small off-grid cabin.
-10%
€137.50 €123.75 Tax escl.
DIY Solar Panel Kit 160W – 72 Mono Cells 3x6 | MR WATT
On sale!New
DIY Solar Panel Kit 160W – 72 Mono Cells 3x6
In stock
72 grade-A half-cut monocrystalline 3"x6" (78x156 mm) solar cells with tab and bus wire, flux and a Schottky diode to build 160 W of panels: one 24V nominal panel or two narrow 80 W 12V strips.
A kit designed by MR WATT, with spare cells included: for 24V systems on boats, work vehicles and campervans with little free roof space.
€99.90 Tax escl.
DIY Solar Panel Kit 80W – 36 Mono Cells 3x6 | MR WATT
On sale!-10%New
DIY Solar Panel Kit 80W – 36 Mono Cells 3x6
In stock
36 grade-A half-cut monocrystalline 3"x6" (78x156 mm) solar cells with tab and bus wire, flux and a Schottky diode to build an 80 W, 12V nominal panel, even in a long, narrow shape.
A kit designed by MR WATT, with spare cells included: perfect for roof strips, campervan sides and boat biminis.
-10%
€53.85 €48.47 Tax escl.
DIY Solar Panel Kit 200W – 72 Mono Cells 5x5 | MR WATT
On sale!-10%New
DIY Solar Panel Kit 200W – 72 Mono Cells 5x5
In stock
72 grade-A monocrystalline 5"x5" (125x125 mm) solar cells with tab and bus wire, flux and a Schottky diode to build 200 W of solar panels: a single 24V nominal panel or two 100 W 12V panels.
A kit designed by MR WATT, with spare cells included: for campervans, boats and small off-grid systems that need more autonomy.
-10%
€138.00 €124.20 Tax escl.
DIY Solar Panel Kit 100W – 36 Mono Cells 5x5 | MR WATT
On sale!-10%New
DIY Solar Panel Kit 100W – 36 Mono Cells 5x5
In stock
36 grade-A monocrystalline 5"x5" (125x125 mm) solar cells with tab and bus wire, flux and a Schottky diode to build the classic 100 W, 12V nominal panel yourself, sized to fit your roof.
A kit designed by MR WATT, with spare cells included: the ideal starting point for campervans, boats and small off-grid systems.
-10%
€72.57 €65.31 Tax escl.
DIY Solar Panel Kit 36W – 36 Poly Cells 3x3 | MR WATT
On sale!-10%New
DIY Solar Panel Kit 36W – 36 Poly Cells 3x3
In stock
36 grade-A polycrystalline 3"x3" (78x78 mm) solar cells with tab and bus wire, flux and a Schottky diode to build your own 36 W, 12V nominal solar panel in the shape you need.
A kit designed by MR WATT, with spare cells included: ideal for campervans, boats, gardens and off-grid school projects.
-10%
€29.89 €26.90 Tax escl.