These things are perfectly safe IF they are installed correctly! I put these fasteners in place without any reinforcement and there is no collapse. Both holding heat lamps, two different ones on my furrow. I used aluminum tape to protect all of the plastic around both lamps, as well as the fixings for double protection from fire or heat erosion. This thing is amazing. The air circulates perfectly around it, so it doesn't overheat. If you're extremely paranoid about fire hazards, they make lights for them on stands that your cage actually stands on for support, but it costs more. If you install them correctly, you don't have to worry! Also use aluminum tape. All plastics will feel cool after applying the tape. UPDATE: The light is still holding and it's been over 1.5 years. I have also adjusted them several times. No problem.
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