1. Plug-in terminal wire

a: Technical principle: Electrical connection is achieved by direct contact between the conductive terminal (such as a pierced metal sheet or slot contact) and the metal conductor of the light strip, without welding.

b: Typical structure: 

(1) Piercing terminal: The conductive terminal has a built-in spike, which pierces the insulation layer of the wire and connects to the internal metal wire. 

(2) Slot terminal: The light strip is inserted into the preset slot and contacts through the metal contact.

c: Advantages: 

(1) Easy installation: It can be completed by one person, without professional tools, and the time consumption is shortened by 50%.
(2) Repeatable disassembly: It supports multiple plugging and unplugging, which is suitable for scenes that require frequent adjustments (such as display cabinet lighting transformation).
(3) Low cost: Simple structure, low material cost, suitable for large-scale production.

d: Disadvantages: 

(1) Poor contact stability: Long-term vibration or external force pulling can easily lead to poor contact.

(2) Insufficient waterproofness: Open slots are prone to water ingress, and additional sealing treatment is required for outdoor use.
(3) Limited conductivity efficiency: Weak current carrying capacity (usually <3A), not suitable for high-power light strips.
Applicable scenarios: Indoor low-power light boxes, temporary displays and other scenes with low waterproof requirements.

2. Magnetic interface connection

a: Technical principle: Use the magnet adsorption force to fix the light strip, and the built-in metal contacts transmit power and signals.
b: Typical structure: 

（1）Magnetic contact type: The magnet rings are embedded at both ends of the light strip, and the metal contacts are connected after adsorption.
（2）Snap-on magnetic type: The magnet is combined with the mechanical snap to enhance the stability of the connection.
c: Advantages: 

（1）Anti-fall design: The magnetic gradient design (initial 0.6N-2.5N after fitting) ensures stability and strong anti-vibration performance.
（2）Waterproof and dustproof: Fully enclosed structure, IP67 protection level, suitable for outdoor environment.
（3）High power support: The contacts are made of copper gold plating process and can carry more than 5A current.
d: Disadvantages: 

（1）Limited transmission efficiency: The contact resistance of the magnetic contact is large, and it is easy to heat up when transmitting over long distances.
（2）Low equipment compatibility: A special interface is required and it cannot be mixed with ordinary light strips.
（3）High cost: The processing cost of magnets and precision contacts increases by 30%~50%.
Applicable scenarios: outdoor advertising light boxes, high-power commercial lighting, frequently moved mobile devices (such as portable WiFi).

Thirdly, what is the specific cost difference between welding-free light bars and traditional welding light bars?

A：Cost difference analysis between welding-free light bars and traditional welding light bars

1. Direct material cost

Traditional welding light strips: additional consumables such as solder, flux, and insulating tape need to be purchased, and the cost per meter increases by about 0.1-0.3 euros (depending on the price fluctuation of solder); high-temperature resistant wires (such as silicone wires) are required, and the cost is 20%~30% higher than ordinary wires.
Weld-free light strips: conductive contacts or spring connections (such as metal springs, piercing connectors) are used, and the cost of single-density materials increases by 0.03-0.08 euros, but consumables such as solder are omitted; some welding-free designs increase material utilization by 15% through optimized structure (such as one-piece PCB), and the overall cost is lower.
2. Labor cost
Traditional welding light strips: professional welders are required, with an hourly wage of about 8-10 euros. It takes 2-3 hours to install a single 10-meter light strip, and the labor cost is 16-30 euros; poor welding requires rework, which adds an additional 10%~20% labor cost.
Welding-free light bar: ordinary workers can operate it, and one person can complete the installation within 1 hour, and the labor cost is reduced to 4-5 euros (a decrease of 50%~70%).
3. Maintenance and after-sales cost
Traditional welding light bar: the failure rate of false welding and desoldering is about 5%~8%, and the rework cost is about 5 euros/time (including materials and labor).
Welding-free light bar: the failure rate is reduced to 1%~2%, and modular replacement is supported, and the maintenance cost is reduced by 60%.

B：The potential financial benefits of solder-free design are significant.

1. Improve customer stickiness

Convenient installation and maintenance attract small and medium-sized merchants (such as milk tea shops and convenience stores) to choose this product, and the repurchase rate increases by 30%.
2. Expand the high-end market
No welding + intelligent dimming meets the needs of commercial complexes, museums and other scenarios, with a premium space of 20%~30%.
3. Reduce after-sales costs
After the failure rate decreases, the amount of after-sales maintenance is reduced, and enterprises can save more than 15% of the after-sales budget for product iteration or marketing investment.
4. Environmental protection and compliance advantages
Reduce the use of welding materials (such as solder), comply with RoHS environmental protection standards, and help enterprises pass green certification and open up more markets.

C：Business value and decision-making recommendations

1. High turnover scenarios are ideal for short-term projects such as chain stores and transfers, and fast deployment reduces capital occupation.

2. This product offers a significant long-term cost advantage, with potential savings of over 500 euros per unit in total costs over five years. It is well-suited for large-scale production.

3. Please note that an initial investment in mold development (approximately 2,000-8,000 euros) and small-batch trial production may extend the return cycle.