Quote:
Originally Posted by fencer
Actually DE have the UV filter. The extra glass shield is to protect you from an exploding DE.
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That doesn't sound right, why would a DE bulb be more likely to explode?
Quote:
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DE lamps do not have the large outer envelope typically found on single-ended lamps that is used to limit the lamp’s UV radiation. Double-ended lamps require an additional safety glass to be installed in the lamp’s fixture in order for them to be safe for your tank’s inhabitants.
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http://reefkeeping.com/issues/2007-03/sj/index.php