... arena,and so on,can be universally used for various pendant lights and canister lamp case 1 ... heat production, perfect heat dissapation, within 70° for junction temperature, the luminous decline is no more ... span 2. High Luminous efficiency (> 80LM/W for light engine), radiation angle is 120º, no need of ... no color shifting 4.Diverse options: 3000K, 6000K for warm white, and cold white temp color 5. ...