Praise the sun! You will never have that awkward situation where your caliper battery dies just when you need to take a measurement. Sure, if you have the budget, we recommend these near-indestructible high-end Mitutoyo calipers. But these are very fine calipers as well. The jaws are plastic, so not good for hot metal measurements or when you need perfectly flat...

This skill badge is self-fulfilling! Normally you would get the badge after the project is done, but in this case, the badge can be part of the project! The solar panel is epoxied into a round disc 55mm diameter (about 2.2 inches), its rugged and looks cool besides. We include a sticky foam pin back you can attach to the back of the panel to mount it onto a backpack,...

These panels come to us from Voltaic Systems, makers of fine solar-powered bags and packs. These are waterproof, scratch-resistant, and UV resistant, and they use 12 high efficiency monocrystalline SunPower cells with 22+% efficiency (praise the sun!). Each cell has a nominal voltage of 0.5V so we call this a "6V" panel They output a 'nominal' 6V at 330 mA peak via a...

These panels come to us from Voltaic Systems, makers of fine solar-powered bags and packs. These are waterproof, scratch-resistant, and UV resistant, and they use 10 high-efficiency monocrystalline SunPower cells with 22+% efficiency (praise the sun!). Each cell has a nominal voltage of 0.5V so we call this a "5V" panel They output a nominal 5V at a 1,670mA peak via...

These panels come to us from Voltaic Systems, makers of fine solar-powered bags and packs. These are waterproof, scratch-resistant, and UV resistant, and they use 10 high efficiency monocrystalline SunPower cells with 22+% efficiency (praise the sun!). Each cell has a nominal voltage of 0.5V so we call this a "5V" panel They output a nominal 5V at 940 mA peak via a...

These panels come to us from Voltaic Systems, makers of fine solar-powered bags and packs. These are waterproof, scratch resistant, and UV resistant. They use a high efficiency monocrystalline cell. They output 6V at 330 mA via 3.5mm x 1.1mm DC jack connector. The substrate is an aluminum / plastic composite, specifically designed to be strong and lightweight. They...

These panels come to us from Voltaic Systems, makers of excellent solar-powered bags and packs. These are waterproof, scratch resistant, and UV resistant. With a high efficiency monocrystalline cell, they output 6V at 180 mA via 3.5mm x 1.1mm DC jack connector. The substrate is an aluminum / plastic composite, specifically designed to be durable and lightweight. They...

These panels come to us from Voltaic Systems, makers of fine solar-powered bags and packs. These are waterproof, scratch resistant, and UV resistant. They use a high efficiency monocrystalline cell. They output 6V at 930 mA via 3.5mm x 1.1mm DC jack connector - a nice upgrade to the 2W or 3W panels we have been carrying. The substrate is an aluminum / plastic...

These 6 Volt, 9 Watt panels come to us from Voltaic Systems, makers of fine solar-powered bags and packs. They are waterproof, scratch resistant, and UV resistant. Using a high efficiency monocrystalline cell and outputting 6V at ~1.5A via 3.5mm x 1.1mm DC jack connector, they are a nice upgrade to the 2W or 3W panels we have been carrying. The substrate is an...

This flexible easy-to-use solar panel is a great addition to your next solar powered project. This solar cell provides approximately 6V DC in direct sunlight at up to 1W (approximately 160 mA). Multiple units can be chained in series and/or parallel to increase voltage and current. The film cells are bonded between two plastic sheets that will protect it outdoors and...

These panels come to us from Voltaic Systems, makers of fine solar-powered bags and packs. These are waterproof, scratch-resistant, and UV resistant, and they use 10 high-efficiency monocrystalline SunPower cells with 22+% efficiency (praise the sun!). Each cell has a nominal voltage of 0.5V so we call this a "5V" panel They output a nominal 5V at 200 mA peak via a...

These panels come to us from Voltaic Systems, makers of fine solar-powered bags and packs. These are waterproof, scratch resistant, and UV resistant. They use a high efficiency monocrystalline cell. They output 6V at 530 mA via 3.5mm x 1.1mm DC jack connector - a nice upgrade to the 2W panels we have been carrying. The substrate is an aluminum / plastic composite,...

Harness even more power from the sun with this nice big solar panel. We had these custom made for us when customers let us know they needed more than what our 2W panel could provide. This panel is a 12-cell (6V) assembly mounted onto a fiberglass PCB and covered with PET plastic which protects the cells without reducing efficiency. The back has two soldering spots to...

This convenient 3.8mm/1.3mm or 3.5mm/1.1mm or 1.3mm DC to 2.1mm DC adapter cable lets you plug one of our solar panels into our optimized Solar Lithium Ion/Polymer charger! 2.1mm inner diameter (5.5mm outer diameter) is the most common type of DC plug, but you can use this adapter for anything else that has a 1.1 or 1.3mm ID (3.5-3.8mm OD) DC jack! The adapter has...

This convenient 3.5mm/1.1mm or 5.5mm/2.1mm DC Jack adapter lets you plug one of our solar panels into our optimized Solar Lithium Ion/Polymer charger! 2.1mm inner diameter (5.5mm outer diameter) is the most common type of DC plug, but you can use this adapter for anything else that has a 1.1mm ID (3.5 OD) DC jack. This adapter lets you convert something with a 3.5mm...

This sleek-looking 'button' is actually an ultrasonic sensor, ready for panel mount use. Inside is a module that uses high-frequency signals to determine distance to a surface. It's elegant looking and is more durable than the 'raw' ultrasonics we sell a lot of, so it would do well in a garage, robot, or installation where you want a durable dust and...

This impressive-looking horn is actually an ultrasonic sensor, ready for panel mount use. Inside is a module that uses high-frequency signals to determine distance to a surface, and the horn helps guide the waveform so it can reach farther without spreading too wide. It's elegant looking and is more durable than the 'raw' ultrasonics we sell a lot of, so it would do...