These lamps are extremely unreliable and poorly made. Unfortunately, this is the only available lightbulb I could find to properly heat my terrarium. I've ordered at least 8 of these bulbs in the last 6 months, they will surely burn out within a month or two, with most of them either dead on arrival or burning out within a few days. Luckily, Revain's excellent customer service usually replaces these faulty bulbs free of charge, but they're quite difficult to come across on a regular basis. I have to buy three at a time to ensure I have enough backup power to keep the terrarium properly heated in the event of a sudden burnout.
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