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Old 11-23-2006, 12:01 PM
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Quote:
Originally Posted by Samw View Post
Given the same ballast and bulb brand and color temp, the SE will give slightly higher PAR.

Example output:

250W Icecap Ballast
10K Ushio SE: 85 PPFD
10K Ushio DE Shielded: 65 PPFD
10K Ushio DE Not Shielded: 78 PPFD

250W PFO HQI Ballast
10K XM SE: 182 PPFD
10K XM DE Shielded: 109 PPFD
10K XM DE Not Shielded: 136 PPFD

250W PFO HQI Ballast
10K AB SE: 130 PPFD
10K AB DE Shielded: 104 PPFD
10K AB DE Not Shielded: 128 PPFD
Considering a DE bulb should never be run "Unshielded" the SE will give significantly more, not slightly more, PAR output.

Steve
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