video
On-Line: 1   Visitors: 10852194
COMPANY PROFILEPRODUCTSRESEARCH & DEVELOPSITE MAPCONTACTS USHOME
10 Apr 2024 Wed
title_images
products search
Advanced Search
Keywords
 
categories
quality certification

JINLING Chen

KIM Chen
 
Chi ming Electronics Co., Ltd. was established in Taiwan in 1984. Has nearly 38 years of experience. Manufacturing LED car lights, LED truck lights. Serving the needs of customers is the most important goal.

News & Events>>Research & Develop

Subject: LED Light-40Watt-Industrial and commercial lighting
2009-12-17



At present the LED chip and packaging technology continues to improve, Tj can withstand temperatures up to 100 ℃ and above, life can reach 50,000 Hr or more; but never not change physical properties of silicon materials. "Light-emitting efficiency and Tj in inverse proportion to temperature", Tj the higher temperature, the light efficiency lower. Cree is a marked Tj = 25 ℃ Light efficiency is set to 100%; when Tj = 75 ℃ optical efficiency of attenuation to 85%; when Tj = 125 ℃ optical efficiency of attenuation to 70%.