Quote:
Originally Posted by banditpowdercoat
DE bulbs have NO UV protection. If the bulb is a Bulb inside a bulb, like the SE bulbs, then it has UV protection
FYI
DE=Dual End
SE=Single End
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SE bulbs have
Some UV protection. You'll still get UVA (but not UVB or UVC) through the outer envelope, not enough to damage any livestock.