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Arrived quickly, nothing was broken good replacement bulbs but some of them went dim and basically useless after only about 6 months. The lumen output was down to ridiculous level. The other brands purchased around the same time were still putting out plenty of lumens.
I could not find any were in the posting the actual distance of the pins; so I thought I would take a chance even though others had a problem with this fitting their light fixtures. They did not fit mine either. The distance between the pins center to center is 3/16 of an inch. I only rated the product a 3 star because the seller has not posted the distance between the pins even though many people have had a problem with this. I do not know how the lights work because they would not fit my fixtures.
I bought these as a replacement for some plant growing tube lights. I needed 4 foot long bulbs (ie. 48 inches). Although the title of this product says "LightWise LWF54T5HO865 8pack 4 FT 6500K T5 HO Fluorescent Grow Light Bulbs (8, 6500k - Blue - Veg)", they are NOT 48 INCHES LONG!
They are actually about 46 and some inches long. They should be called "approximately 46 inch bulbs" in their title.
I highly recommend swapping out your fluorescent bulbs every year or every three grows. I used them for the vegetable cycle and are on for 18 hours a day. You can see a drastic improvement in the plants as soon as you swap out the old ones with the new.
The eight bulbs I ordered were well packaged and arrived safely. (As they were inside a thick cardboard tube, I would not expect to find any breakage.). I own a couple different brands of fixtures, mostly Sun Blaster. And the bulbs fit the fixtures, no problem. The greater brightness that comes with a new tube was apparent. I noticed that a lot of the bulbs I replaced were the same bland as these. And those 8 or 9 bulbs had been in use for about a year with no problems Very pleased..
I'm changing my review. These lights do not last very long. I have bulbs from other companies that out last two or three of these bulbs. It seems like every time I turn around I'm replacing one because it's burnout. It is not my equipment because I have other brands right next to these. I have changed the location of the balls around in the light to see if the light was bad itself and it is not. The problem is the bulbs
i am always worried when ordering light bulbs online, but the price on these was cheap enough that it was worth risking it over buying a brick and mortor store. the packaging was great - in a really heavy duty round tube - and they all arrived intact. i haven't used all of them yet, but so far, all of them have worked and are still going strong. will definitely get these again in the future