The new LED solution for outdoor lighting everyone has been waiting for
5050 LEDs are replacing the 3535 LEDs, which have long been the market leader in outdoor lighting. The existing ceramic-based 3535 offers excellent reliability but comes at a high price. Currently, 5050 LEDs, with their significant performance improvements in recent years, are targeting the market with competitive pricing. However, 5050 LEDs must continue to enhance their reliability to become mainstream. The American National Standards Institute (ANSI), the organization that oversees standards and conformity assessment activities in the United States, has published a comprehensive list of factors to consider when designing outdoor lighting. These guidelines have been updated to ensure road safety and are expected to become even more important due to climate change. Therefore, the outdoor lighting industry is constantly searching for more reliable and affordable lighting solutions to protect our safety and property.
Samsung’s high-power LH502D is the answer to all these issues, an ideal outdoor light source that overcomes the limitations of current outdoor lighting products.
The Innovation Behind the High-Power LH502D
Outdoor lighting is directly related to safety and can be extremely expensive to replace. This is why long-term, stable performance is essential. Samsung’s LH502D has demonstrated unparalleled performance in multiple core reliability tests. According to data provided, this new solution extends product life from 5 to 16 years (based on 8 hours of daily operation).
Samsung’s superior ceramic coating technology prevents sulfuric acid gas from contacting the silver (Ag) within the package, thereby preventing the formation of sulfides. This new outdoor lighting solution, with its high sulfur resistance, successfully reduces lumen degradation to just 3% or less, extending service life. The ceramic coating also offers enhanced resistance to high humidity and salt spray, preventing lighting corrosion and malfunction. Furthermore, Samsung has implemented a Zener diode to mitigate electrostatic discharge (ESD), another key failure factor for high-power LEDs, thereby achieving stable performance in harsh environments.

On top of that, another major advantage the LH502D promises with its outstanding performance is its economic advantages. Our new solution delivers outstanding lm/W, surpassing existing 3535 lumens per watt (lm/W). Its high efficiency reduces the number of packages required in module design and lowers surface mount technology (SMT) costs, resulting in highly competitive pricing.

Scientifically Proven High Reliability
To demonstrate the LH502D’s robust performance, Samsung conducted reliability tests under various conditions. Rigorous testing demonstrated the LH502D’s high durability compared to existing outdoor lighting solutions under the extreme conditions often encountered outdoors, including high temperatures, hazardous gases, and salinity. The results confirm the Samsung LH502D’s superior reliability compared to other similar solutions on the market.
■ Salt Mist Test

• Test: Salt Mist, Cyclic (Sodium Chloride Solution)
• Duration: 6 days
• Conditions: NaCl 5%/35°C salt spray for 2 hours → 40°C/93% for 6 days, 22 hours, 4 cycles
■ High Humidity Test

• Test: Wet High Temperature Operating Life Test (WHTOL)
• Duration: 1000 hours (42 days)
• Conditions: 85°C/85%, 640mA, On/Off for 0.5 hours
■ Sulfur Test

• Test: Hydrogen Sulfide Test
• Duration: 504 hours (21 days)
• Conditions: 25°C, 75% RH, H2S 15ppm, 504 hours

Samsung’s Vision in Outdoor Lighting
Samsung The LH502D is now the most ideal and economical solution, delivering optimal performance even in the most challenging outdoor environments, such as roads, tunnels, factories, and ports. With the LH502D as a starting point, Samsung will lead the future outdoor lighting market and continuously introduce more advanced lighting solutions based on various customer needs.
About Gainer LED:
Gainer LED was established in 2012. The company focuses on providing advanced technology solutions for medium and high power general lighting, special lighting and high-end display fields. Its products are widely used in commercial lighting, industrial lighting, smart buildings and professional display screens. Relying on a global marketing network and professional technical service system, Gainer LED continues to provide global customers with high-performance lighting products that meet international standards and fully meet the diverse needs of the market.
For more customer service needs, please contact us:
- Phone: +8615818679054
- Tel : +86-755-27835429
- Email: info@gainer-led.com