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Small rectangular blue solar panel 165 by 135 by 3 millimetres

crystalsolar

crystalsolar SW3506 3.5W 6V solar panel 165×135×3mm

SKU CH-1GJM-YSZDV MPN SW3506

Compact monocrystalline panel delivering 3.5 W at 6 V with 19 % conversion for DIY lighting and small solar projects

  • Product typeSolar Panel
  • Delivers 3.5W for compact off-grid projects
  • 19 % conversion rate maximises energy harvest
  • 58 A output suits low-voltage lighting systems
  • Ultra-thin 3 mm profile fits tight enclosures
  • Weighs only 0.080 kg for portable builds

Compact 3.5 W monocrystalline panel

The crystalsolar SW3506 is a 3.5 W monocrystalline silicon module that delivers 6 V at 0.58 A. Its 165×135×3 mm footprint and 0.080 kg weight suit DIY lighting, solar toys, water-pump projects and other small off-grid systems.

Passive operation and efficiency

With no moving parts the panel runs silently and draws no power itself. A quoted 19 % maximum conversion rate means useful output even in weak light, so the unit keeps charging low-voltage devices without audible noise or thermal load.

Steady output under continuous sun

Under sustained illumination the panel maintains its rated 3.5 W without the voltage sag seen in short bursts. The monocrystalline cells tolerate prolonged exposure, making the module reliable for all-day lighting or pump duties rather than brief peak bursts.

How it compares

Measured against everything we stock in Solar-Powered Chargers & Devices, at today’s prices. Recalculated every night.

Price $6.99
Cheaper than about 93% of the 874 comparable items (median $25.99).

Specifications

Product
Product typeSolar Panel

Questions about this item

How do I mount the 165×135×3 mm panel and what wiring mistake should I avoid?

Use the four corner holes to secure the lightweight 0.080 kg frame; connect the leads to a 6 V charge controller — never hook the 0.58 A output directly to a battery.

What part will degrade first and need replacement after long outdoor exposure?

The monocrystalline silicon cells slowly lose output; the 19 % conversion rate drops over years, so plan to swap the whole panel when charging current falls below your load.

At what point does sustained full-sun operation hit a hard limit?

The panel caps at 3.5 W and 0.58 A at 6 V; once your load tries to draw more current the voltage collapses and charging stops.

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