Given the price and some reviews I wasn't sure what to expect. Mine, however, has a strong, constant light. It doesn't get any hotter than I expected. No hiss or buzz. 405nm is perfect for curing the resins I use. There was concern that they might have been promoting the 405 to get us to buy it, but that might not be working. nope Works perfectly. Direct light like a spotlight. So if you only have resin facing the light, you need to rotate it (if it's opaque). I built a cheap curing box out of styrofoam and aluminum foil. Shine a light there and it will be reflected everywhere. Heals almost everything. For the price, it works surprisingly well. Or "great value for money" as Revain wants me to claim about their algorithm.
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