SPT1 versus SPT2
The primary difference between SPT-1 and SPT-2 cords lies in the thickness of the insulation around the wires. Here’s a breakdown of both:
SPT-1 Cord:
• Thickness: The insulation around the wire is typically 0.03 inches thick.
Pros:
• Lighter and more flexible: Easier to handle and install in tight spaces.
• Cheaper: Typically costs less than SPT-2, making it more budget-friendly for projects.
• Adequate for lighter-duty applications: Suitable for shorter runs of Christmas lights or smaller, less energy-demanding setups.
Cons:
• Less durable: The thinner insulation provides less protection, making it more prone to wear and tear, especially outdoors.
• Lower temperature and weather resistance: Not as resistant to harsh weather conditions or UV exposure, potentially leading to faster degradation.
• Lower current capacity: Not ideal for long runs or high-powered lights.
SPT-2 Cord:
• Thickness: The insulation is thicker, typically 0.045 inches.
Pros:
• More durable: The thicker insulation provides better protection from environmental factors like moisture, abrasion, and UV exposure.
• Higher current capacity: Better suited for longer runs and higher-wattage lights, making it ideal for larger installations.
• Better for outdoor use: Offers improved resistance to the elements, so it lasts longer in outdoor applications.
Cons:
• Less flexible: The thicker insulation makes it a bit stiffer, which can be more challenging to handle and install.
• More expensive: Typically costs more than SPT-1 due to the added durability and protection.
Which to Choose?
• SPT-1 is typically used for smaller or temporary indoor displays and is a good budget option.
• SPT-2 is better for outdoor, larger, or permanent light installations due to its durability and higher current capacity.