Philips LED 262600 32W T9 Daylight Deluxe 6500K Circline Linear Fluorescent Light Bulb (12 Pack), 12'' 24 Inch Sylvania 23014 F18T8CW/K24 18W T8 Medium Bipin 4200K Preheat Fluorescent Light Bulb LimoStudio [2 Pack] 85W 6500K CFL, Compact Fluorescent Light Bulb for Photography Studio, Day Light Balanced Pure White, LMS119 (12 Pack) PLC-18W 865, 4 Pin G24q-2, 18 Watt Double Tube, Compact Fluorescent Light Bulb, Replaces Sylvania CF18DD/E/865 and Philips - PL-C 18W/865/4P/ALTO Sylvania 1156 Bulb - Pack of 10

Good quality but packing sucks. Packing was wet and damaged. One tube was warped so much it would not fit. Amazon needs to train its packers how to pack light tubes. This is the third time I have received tubes that were damaged in transit.

You twist out old bulbs and twist in these new bulbs and forget about it. It is that easy. They only pull 24 watts compared to the 54 each of the originL t5 bulbs. I measured with a Meter and tested the amp draw at the breaker panel. These t5 bulb replacements are legitimate. Currently have two sets. you can even mix match in same light same ballist with original bulbs and these at the same time. Tried just replacing one bulb and two bulbs in a 4 bulb fixture. Still works fine. Much less heat. Just wish they were a bit cheaper so I can buy 1 more set.

Fit right in where my T-12 fluorescent bulbs were. They are working great!

Remains to be seen if they provide the correct spectrum for my seed starting grow lights. Just started my trays. Comparing them with my T5 florescent tubes which work great for seed starting but use a little more energy than I would prefer and only last 9mos running 12hrs a day. These LEDs if they are like my porch light should last 5x as long.. ( its on 24/7 and still burning 5yrs.)

Shipping was great, hopefully customer service is just as good. The description reads 4' T5 bulbs but they are actually 45.75" I guess I should have scrolled through the pictures but the description has never let me down before.Just be aware these are not 4' Bulbs

Amazing. Fluorescent bulbs are trash! These fit my 4’ Vivosun and they are WAY brighter than the T5 fluorescent bulbs it came with. Did not have to mess with ballasts at all, just put em in like normal. GREAT value especially if they last longer. After 2 months they’re doing great.

Bulbs are ok...but they shorted me 1 bulb. No option to replace and correct my order. I would have to waste 20 dollars in time and transportation to return. Beware...I'll suffer the loss like we Americans typically have to. I'll buy locally, where I can count....

Bright daylight 5700 k light color , powers up no problem with the original ballast .

Very bright and uses less energy

Solo cambias el foco sin cambiar balastro y da buena luz