I love these heat bulbs as I now have 3 different watts. I first ordered a blue 25w daylight bulb which worked great in the summer, but in the winter I had to switch to a blue 50w bulb. If anyone needs help, my house is 68 degrees Fahrenheit and a 25 watt fluorescent light bulb kept my 18" 18" 24" at about 70 degrees after a few hours of initial setup. 50 watt fluorescent lights keep the tank temperature between 76 F - 85 F. This is perfect for my white tree frog.. I ordered a 25 watt red night light but it didn't work.. I've never had one that didn't work, it didn't heat up that much and is not broke just flickered and turned on then never came back on site replacement or refund on site I decided I didn't need a night light as my house was warm enough at night so I received a refund Overall I'm very pleased I did recommend these lamps. Have been using them for several months, no problems at all. Very safe and effective, and at a good price.
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