Double ended bulbs provide a higher light output when compared to single ended bulbs as they are supported by both ends while single bulbs have one connection.
Double ended bulbs review.
Double ended lights get much hotter producing far more light and heat than a normal or s e.
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The arc tube connects to the base of the bulb with a metal frame wire holding it up by each end.
Double ended bulbs boast two connection points one at either end whereas a single ended bulb or lamp only has one connection point.
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Double ended de hps bulbs connect to the fixture on each end much like fluorescent tube bulbs.
Now the reason we re testing these bulbs is because they are supposedly possibly toppling the single ended which is the standard 1000w hps bulb we re all familiar with as the best bulb for indoor growing.
Double ended de grow lights have the positive and neutral sockets at each end of the fixture as opposed to the one socket on a single ended se bulb.
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Single ended bulbs have to be changed after every 6 000 hours of use while double ended bulbs retain around 90 efficiency after 10 000 hours of use.