I have mostly fluorescent lamps. I recommend LED's. I have one Sunblaster LED lamp which is from Hydrofarm (Amazon). I plan to eventually convert completely to LED lights. For a while, the LED lights were quite expensive and unreliable but that has changed. When choosing lights, go with a dependable brand or a dependable vendor. Some of the cheaper lights can possibly be a fire hazard.
---------- Post added at 11:38 PM ---------- Previous post was at 11:27 PM ----------
I had a Cattleya long ago, bought without a label, that, in ten years, never bloomed. I put it in full sun, all day (people said it wasn't getting enough light), fertilized it only during the spring and summer, it had cooler winters with shorter daylight hours...etc. and each pseudobulb put out two pseudobulbs twice a year. I tried everything and the other Cattleyas all bloomed but that one never did. I eventually even had two huge pots of it. It even had undisturbed dark nights one year. I still have no idea what it needed to actually bloom. I lost both pots of it with many other Cattleyas due to the bacterial plague during the Calcium deficiency learning experience. Ten years...no blooms, came from a florist who bought the orchids to use the blooms so I knew it had bloomed once. I sometimes wonder if it was virused or if it just needed really high light all year instead of just during the summer.
Instead of tossing it, it might be worth donating it to an orchid society and asking to be informed if it ever blooms. Oddly, some orchids that never bloom for one person might bloom for another.
I have a few Cattleyas right now that were said to be blooming size a few years ago but haven't bloomed. They had not bloomed previously so I am not too worried...yet.
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