Questions and Answers for Lithonia Lighting GRW 2 28 CSW CO M4 4 ft. 2-Light 28-Watt White T5 Fluorescent Grow Light

A:  GRW 2 28 CSW CO M4 has been discontinued with replacement parts.

A:  Please review attached spec sheet https://img.acuitybrands.com/public-assets/catalog/122069/grw.pdf?abl_version=04%2f05%2f2019+06:02:48&DOC_Type=SPEC_SHEET

A:  No clue, never out of the box as obviously filled with broken glass.

A:  This is fluorescent fixture, includes two 28-Watt 6500K T5 fluorescent bulbs. Please check Lumen package with light bulb supplier.

A:  These are quite bright and provide very natural looking light so I think they could be a great choice for lighting in a dark basement. The shipping package is not very sturdy. So I suggest ship to store rather than home to get them without breakage. That has been successful for me. They credited me for the broken ones, it is just a hassle to go through the process and causes delays to your project.

A:  Hi. Thanks for your answer. My question was more related to the effect on humans. I mean if they might be bad for your eyes, or headaches or whatever since they are made to use with plants originally. Thanks

A:  This light fixture is designed to enhance seedling growth. It is only 28-watts and isvdesigned to be suspended over and close to a seed tray and raised as the seeds sprout and grow. I personally do not think this fixture would provide enough light to paint by.

A:  Probably have a short in the wirirng

A:  I would recommend to get someone qualified to come and check the light and connection.

A:  As long as they are T5 they should fit. I would research to make sure that the 14 watt bulb will give the optimum results that you are wanting. I ordered these lights and am very pleased with how they work.

A:  Model # GRW 2 14 CSW CO M4 HD.comInternet # 202745704 Store SKU #263547 Check out this option if you would like 14W version.

A:  Mine is in my unheated basement, out in the open. The basement temperature is 60. After it being on for twelve hours, a thermometer placed on top of it, at the ballast end, registers 83 (it's probably warmer than 83, since it feels warm to touch at that spot). The temperature at about 2" below the lamps is 70. If you're hoping for it to produce a lot of heat, it won't do it.

A:  Based on the thermal test,we did not record the actual lamp, but did measure the diffuser directly over the lamp- 44°C (111°F). Thank you for your inquiry.

A:  I don't have a heat-measurement instrument, but they don't produce much heat at all, and certainly none to speak of immediately below the light itself.

A:  Practically none

A:  With it free hanging from ceiling you can place your hand on it and it's slightly warm

A:  Yes

A:  Yes! Two bulbs are included.

A:  Yes

A:  Yes. Instant on and nice and bright.

A:  Yes. I had to fiddle with the sockets to get them to work. They have worked since.

A:  Yes, this listing includes bulbs, chain, brackets, cord, outlet, and on/off switch.

A:  Per Product Overview - "Includes two 28-Watt 6500K T5 fluorescent bulbs"