LUZCELL TECHNOLOGY LIMITED

USB Port Ni-Zn Batteries, do your part for the earth! Non-flammable; Non-explosive; Very Stable 1.6v voltageThe voltage of ni zn battery is higher than that of 1.2v nimh battery, which can replace alkaline battery in various applications.High discharge currentThe maximum discharge current of zinc nickel batteries can reach 12A, which is very suitable for high drain professional devices that requires a high amount of power or peaks of power, and has a longer service life.Environmentally friendlyThe zinc nickel battery has a long service life of 1000 cycles without harmful metals.  Comparison Between Ni-Zn and Ni-MH Batteries:  FeatureNi-ZnNi-MHVoltage (Nominal)1.6 V1.2 VEnergy Density (Wh/kg)100-180 Wh/kg60-100 Wh/kgCharge CyclesUp to 1200 cycles500-1000 cyclesSelf-Discharge Rate (per month)High (up to 10%)Low (1-5%)Charging EfficiencyHighModerateEnvironmental ImpactNo toxic (no heavy metals like cadmium)Contains rare earth elementsOperating Temperature Range-20°C to 60°C-20°C to 50°CCostModerateLowerApplication SuitabilityBest for high-drain applications (e.g. power tools)Common in consumer electronics and hybrid vehicles；Not enough for modern smart devices. Applications: Best for high-drain applications (eg power tools/Children's toys/Flash/Microphone/Measuring instruments).  Advantages: Nickel–zinc batteries perform well in high-drain applications, and may have the potential to replace lead–acid batteries because of their higher energy-to-mass ratio and higher power-to-mass ratio — as little as 25% of the mass for the same power.The European Parliament has supported bans on cadmium-based batteries. Nickel–zinc is a good alternative for power tools and other applications. NiZn is a good battery choice for applications requiring high-power and high-voltage.Nickel–zinc cells have an open circuit voltage of 1.85 volts when fully charged and a nominal voltage of 1.65 V. This makes NiZn an excellent replacement for electronic products designed to use 1.5 V alkaline primary cells.NiZn batteries do not use mercury, lead, or cadmium, or metal hydrides, all of which can be difficult to recycle. Both nickel and zinc are commonly occurring elements in nature, and can be fully recycled.NiZn cells use no flammable active materials or organic electrolytes.Properly designed NiZn cells can have very high power density and low-temperature discharging performance, and also can be discharged to almost 100%, and recharged without problems.Zinc is a cheap and abundant metal, the 24th most abundant element in the Earth's crust, and is not dangerous to health. Common oxidation is +2, so charge and discharge move two electrons instead of one as in NiMH batteries.         

Rechargeable AA Ni-Zn Batteries with Built-in USB Port 

Evergreen (H.K.) PCB Limited

The highlighted rigid printed circuit board has a green solder mask and is finished with immersion gold. It comes in a 2-layer design and flaunts a high glass transition temperature. This rigid printed circuit board is meticulously crafted to ensure stable and efficient operation. 	 Rigid printed circuit board (PCB). 	 Material: FR-4 / CEM-3. 	 Layer: 2 layers. 	 Board thickness: 0.2mm / 0.4mm. 	 High TG: TG150 / TG170. 	 Finishing: immersion gold. 	 Solder mask: green color. 	 Blind via / buried via. 	 Oval shape. 	 Meticulous workmanship. 	 Stable and efficient operation.  

Rigid Printed Circuit Board

The featured rigid printed circuit board comes in a multi-layered design and is halogen free. It is made of FR-4 grade material and has a thickness of 0.6mm.This printed circuit board flaunts a long working life and is suitable for motor use. 	 Rigid printed circuit board (PCB). 	 Material: FR-4. 	 Layer: 4 layers / 6 layers. 	 Board thickness: 0.6mm. 	 Finishing: OSP ENTEK. 	 Solder mask: green color. 	 Motor PCB. 	 Push back tooling step motor PCB. 	 Halogen free PCB. 	 Robust construction. 	 Long working life. 	 Offer reliable connectivity.  

Amazing Toys Ltd

The featured circuit set includes different accessories to conduct more than 25 experiments. The accessories include floating ball, led light and many more. It helps children to learn about electronics and have fun at the same time. Electronic circuit toy.Include different accessories for connection.With more than 25 experiments.Educational and fun.Develop the creativity of children.Learn to connect interesting FLOATING BALL, LED LIGHT, RESISTORS and many moreHighly sensitive LIGHT CONTROLLED LIGHT Adjustment for Brightness ControlRequires 2 x "AA" batteries, not included Demonstration Video: https://youtu.be/BYJUwY2vnJQ 

25+ Circuit Fun

This rigid printed circuit board has a 2 layered design and is finished with hot air leveling. It has a green solder mask and is well crafted to ensure excellent connectivity. The printed circuit board is easy to install and is suitable for control panels and LED indicators. 	 Rigid printed circuit board (PCB). 	 Material: FR-4 / CEM-3. 	 Layer: 2 layers. 	 Board thickness: &nbsp;1.6mm. 	 High TG: TG150 / TG170. 	 Finishing: hot air leveling (HAL). 	 Solder mask: green color. 	 Power supply PCB. 	 Control panel PCB. 	 Panel display PCB. 	 LED indication PCB. 	 High quality. 	 Easy to install. 	 Excellent connectivity.&nbsp;  

BYJARDA (HK) SCI&TECH CO., LIMITED

DIY STEAM Toys Principle of gear transmission Principle of electronic circuit 

Circuit machinery

Featured here is a rigid printed circuit board made of FR-4 grade material. It comes in a 2 layered design and has an immersion gold finish. This printed circuit board offers efficient performance and is great for automobile use. 	 Rigid printed circuit board (PCB). 	 Material: FR-4. 	 Layer: 2 layers. 	 Board thickness: &nbsp;1.6mm / 2.0mm. 	 High TG: TG150 / TG170. 	 Finishing: immersion gold. 	 Solder mask: green color. 	 Automobile PCB. 	 Easy to install. 	 Durable construction. 	 Efficient performance.  

Highlighted here is rigid printed circuit board with a two layered structure. It has a green solder mask and is finished with hot air leveling. This printed circuit board flaunts a long working life and is great for power supply and control panel use. 	 Rigid printed circuit board (PCB). 	 Material: FR-4 / CEM-3. 	 Layer: 2 layers. 	 Board thickness: &nbsp;1.6mm. 	 High TG: TG150, TG170. 	 Finishing: hot air leveling (HAL). 	 Solder mask: green color. 	 Power supply PCB. 	 Control panel PCB. 	 Panel display PCB. 	 Rectangular shape. 	 Easy to assemble. 	 Long working life.  

The displayed printed circuit board is made of FR-4 grade material and has a multi-layer design. It has a heavy copper construction and is finished with immersion gold finish. This durable and functional printed circuit board is ideal for power supply and motor driver use. 	 Rigid printed circuit board (PCB). 	 Material: FR-4. 	 Layer: 2 layers / 4 layers. 	 Board thickness: 0.6mm / 0.8mm / 1.0mm. 	 Finishing: immersion gold. 	 Remote control transmission PCB. 	 Heavy copper. 	 Copper thickness: 2oz / 3oz / 4oz. 	 Power supply PCB. 	 Console PCB. 	 Motor driver PCB. 	 Rectangular shape. 	 Durable and functional. 	 Outstanding quality.  

Rigid PCB

COG Ltd

This electric kit shows users how to build a light circuit. For added fun, a replica paper lighthouse is included. Science combined with entertainment! 	 Age Group: Ages 8 and up. 	 Package Dimensions: L: 14 cm W: 14 cm H: 12 cm  

Light Circuit Box Kit

This PCB showcases fine conductive lines and tiny electronic components that form working circuits or assembly in your machineries. Made of high quality ceramics, the regular four-side construct promises quick mounting and a long-service life.

Features:
&bull; Material: ceramics.
&bull; Standard four-side panel.
&bull; Dual layer housing.
&bull; Showcase fine conductive lines and tiny electronic components.
&bull; Guarantee a long-service life.
&bull; Perfect base board for circuits and assembly in machineries.&nbsp;
&bull; Roger layer : 2.
&bull; Thickness: 0.8/1.0/1.2mm.
&bull; Finishing: immersion tin/immersion silver.

Applications:
&bull; Transmission PCB.
&bull; Receiver PCB.
&bull; High speed transmission PCB.
&bull; Radiation PCB.
&bull; Low loss PCB.

Optosupply Ltd

Through-hole LED/3mm Round, T-1 Single-Level CBI( Circuit Board Indicator)  Circuit Board Indicator LEDs, or Assembly LED, is a black plastic housing (Holder) which mates with Optosupply LED lamps. Circuit Board Indicator is available in a wide variety of packages, including top view (Spacer) or right angle and horizontal or vertical arrays which is stackable and easy to assembly.  Circuit Board Indicator products include 2mm, 3mm, 5mm, rectangular type. Various array configurations available include backlighting, single-level, bi-level, tri-level, quad-level, dual-block, tri-block and quad-block versions in single color and bi-color, and color choices include green, red, yellow, white, blue and orange. Custom color combinations are available.  Assembly LEDs is well-suited for a broad range of applications including automation and industrial control, infrastructure, IoT, medical, switchers, storage servers and telecommunications and more.  FEATURES Pre-trimmed leads for pc mounting Black case enhances contrast High reliability life measured in years Housing UL rating: 94V-0 Housing material: Type 66 nylon Halogen-free:RoHS complian 

3mm Round LED, T-1 Single-Level CBI( Circuit Board Indicator) LED

More than 200 Exciting Educational ExperimentsSuper SOUND DETECTOR to start spinning the Colour Filter / Flying Fan / TopFlying disc GLOWS in the darkHighly sensitive LIGHT CONTROL with different digital Doorbell / Musical MelodiesSimple MAGNETIC CONTROL for Floating BallMagic finger TOUCH CONTROL to light up LED LightSTORAGERequires 4 x "AA" batteries, not included Demonstration Video: https://youtu.be/chW-l2-YSqk 

200+ Crazy Circuits

The irregular outline of this PCB is accented with cut-offs and punched holes to ease mounting in various computing devices. It integrates conductive pathways, transistors and capacitors, forming circuits for functional use. The red solder mask finish further promises long-term applications with lasting good looks.

Features:
&bull; Material: FR-4.
&bull; Irregular outline of double layer design.
&bull; Accented with cut-offs and punched holes.
&bull; Integrate conductive pathways, capacitors and more.
&bull; Promise long-term applications.
&bull; Functional piece for electronic and computing devices.
&bull; Layer: 2.
&bull; Thickness: 1.6mm.
&bull; Finishing: HAL.
&bull; Solder mask color: red.

This PCB takes on a quadrilateral panel design, comprising 8 circular accents with soldered circuits, resistors, transistors to boast functionality. Its thin housing further highlights punched holes at corners that ease installation in computers, motors and more.

Features:
&bull; Material: FR-4.
&bull; Quadrilateral panel design.
&bull; Thin, double-layer housing.
&bull; Comprise 8 circular accents with soldered electronic parts.
&bull; Highlight punched holes at corners for installation.
&bull; Perfect for functional use in computers, motors and other machines.
&bull; Layer: 2.
&bull; Thickness: 0.6mm.
&bull; Finishing: OSP Entak.
&bull; Solder mask color: green.

Applications:
&bull; Motor PCB.
&bull; Push back tooling.
&bull; Step motor PCB.
&bull; Halogen-free PCB.

Soldered with electronic components such as transistors, resistors and circuits, this PCB depicts punched holes at corners for effortless mounting in machines. Its standard dual-layer construction further boasts immersion gold finish that guarantees a long service life.

Features:
&bull; Material: FR-4.
&bull; Standard rectangular panel.
&bull; Dual-layer construction.
&bull; Guarantee a long service life.
&bull; Soldered with electronic components.
&bull; Depict punched holes at corners.
&bull; Ensure effortless mounting.
&bull; Suitable for a wide range of computing devices, machines and electronics.
&bull; Layer: 2.
&bull; Thickness: 0.4mm.
&bull; Finishing: immersion gold.
&bull; Solder mask color: matte black.

Applications:
&bull; Pulse PCB.
&bull; Coil bonding.

The multi-layer structure of this PCB finishes off with a green soldered mask to prevent oxidation, depicting fine conductive lines, resistors and more for functional use. Its standard rectangular profile further guarantees quick mounting in different computing devices.

Features:
&bull; Material: FR-4.
&bull; Standard rectangular profile.
&bull; Multi-layer design.
&bull; Depict fine conductive lines, resistors and more.
&bull; With soldered mask to prevent oxidation.
&bull; Pledge efficient current flow and connection.
&bull; Guarantee quick mounting.
&bull; Brilliant circuit board for a number of computing devices.
&bull; Layer: 4.
&bull; Thickness: 1.3mm.
&bull; Finishing: immersion gold.
&bull; Solder mask color: green.

Applications:
&bull; HDI PCB.
&bull; Side plating.
&bull; Protect impedance control.
&bull; Automobile PCB.

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