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R&D in solar warning lights emphasizes longer service life

Makers are utilizing high-power LEDs and batteries in new releases.


  • Upgraded light source: Recent China-made solar warning lights come with LEDs that can function for at least 50,000hr. Some diodes can even go beyond 100,000hr. These have luminous efficacy at 80 lm/W and can be seen from about 800m. 
  • New raw materials: For the housing, makers adopt acrylic in most releases because of its durability. Its service life can exceed three years even under harsh weather conditions. Metal such as aluminum is employed as well.

Enhanced batteries: Several units have integrated NiMH, NiCd or Li-polymer batteries that can last at least 12hr after a full day of solar charging. A few can function for about 3 nights.


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Note: This article "R&D in solar warning lights emphasizes longer service lifewas originally published by Global Sources, a leading business-to-business media company and a primary facilitator of trade with China manufacturers and India suppliers, providing essential sourcing information to volume buyers through e-magazines and trade shows


All price quotes in this report are in US dollars unless otherwise specified. FOB prices were provided by the companies interviewed only as reference prices at the time of interview and may have changed.

Disclaimer: All product images are provided by the companies interviewed and are for reference purposes only. Those product images featuring products with trademarks, brand names or logos are not intended for sale. We, our affiliates, and our affiliates' respective directors, officers, employees, representatives, agents or contractors, do not accept and will not have any responsibility or liability for product images (or any part thereof) which infringe on any intellectual property or other rights of a third party.

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