juplin

從H502D -> H502C
流明大概是打85折
等SC62D出來後，看一下數據再決定要不要等c好了
0756 發表於 2013-9-13 12:09

CPF那邊引用Rebel LED 的Data Sheet資料，c與d 裸 LED的光通量差距只在 4-5%
在相同1000mA電流下與色溫4000K 的 XM-L2比較，光通量也只差了大約 24%（XM-L2的優勢是在1.5A以上的大電流）

我比較傾向 SC62c，也許有筒友d及c都會收吧.

yes, difference between 4000K & 5000K hi-cri versions is minimal, 4-5%

small quota from datasheet : (it's raw LED lumens, not OTF. In real life you will get slightly less lumens, because we loss few % of light on reflector and glass)

Part Number CCT CRI, minimum Typical Luminous Flux (lm)
_ _ _ 350 mA 1000 mA

LXH8-FW40-Y 4000K 80 min _ 114 288 lm
LXH8-FW50-Y 5000K 80 min _ 120 300 lm

Cree XM-L2 : (1000 mA , calculated Minimum Luminous Flux (lm))

Neutral White 3700 K -- 5000 K 357 lm (T5 group)
Neutral White 3700 K -- 5000 K 330 lm (T4 group)

http://www.candlepowerforums.com ... wfull=1#post4278902