VIVOSUN Seed Starter Kits, Polypropylene (PP), Black, 1-Pack 40-Cell Trays with Lamps and Heat Mat

helps me get my seedlings started before transplanting into 1gal and moved to my grow tents

The media could not be loaded. Impressive starter kit.Fit and finish are very good.The price is competitive with other brands, however the durability is questionable. The plastics are on the thin side. However, sturdy because it is square shape. The longevity depends on how one respects their belongings.All settings and accessories function per the description.The heating mat temperature and the thermostat control are relatively accurate (+/- 1° f).The built in timer is optional to use and changes colors depending on the schedule (Off, 8/16, 12/12, 18/6). The selector switch provides feedback with a solid feel and loud click sound so you definitely know you pressed the selector button. So does the entire household.The light intensity settings and timer settings have memory as long as it is connected to a power source. Unplug the power cord and all settings are lost. An external timer is a no go. A power outage will definitely be inconvenient.The light panels lay nicely snug in their designated position. Nothing to secure them in place. Use slight care when removing the lid. Perhaps secure the light panels with painters tape (less adhesive) for easy removal.Test time…The readings will fluctuate by a couple numbers depending on the ambient lighting. I tested the lights in a well lit living room; artificial lighting/natural ambient lighting from windows.I tested the PPFD (umol/m2/s) and DLI with the Photone Pro app with their optional (recommended) diffuser.The phone with diffuser was then placed on top of the seed tray. Sprout level.PAR setting is on Full Spectrum lighting.READINGS: Light intensity = PPFD / DLI (18 hours of light).Intensity 25% = 46 PPFD / DLI = 2.99Intensity 50% = 87 PPFD / DLI = 5.74Intensity 75% = 129 PPFD / DLI = 8.48Intensity 100% = 168 PPFD / DLI = 11.0*PAR (Photosynthetic Active Radiation)*PPFD (Photosynthetic Photon Flux Density)*DLI (Daily Light Integral)In conclusion, Thumbs up!

I think it's needed to put a warning in the description to make it clearer that this is made for the American market and therefore not useable in Europe due to the difference in voltage.

J’adore!

I purchased this to streamline the process and it has done just that. I’m able to place rock wool or soul directly into the tray. The dome with vents is great and I’m able to control the humidity within fairly easily. The leds fit securely into the lid and have adjustable power and timers for all cycles. The heating pad works great! Makes it super easy to keep the unit at a constant temp. It’s a bit flimsy as far as the plastic but that’s pretty much expected. Easy to clean up and start a new round. I’d definitely recommend this!