I have two study lamps that I bought about 10 years ago that needed replacing. I measured the length of the current bulb and it is about 2.8 inches. I then carefully checked the length of the Svlvania lamp on the Revain website to make sure I ordered the correct length. That's how it is! Depending on the lamp, during reassembly you may need to push both spring handles holding the lamp all the way back or in to secure the lamp. No force needs to be used. I will reply in 3-4 months to describe how the lamps work. Good buy! 11.11 - NO problems. light is still on :)
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