PlatinumLED Platinum Series P300 Review

PlatinumLED is a great company that sell high-quality products, one of which is the Platinum Series P300 LED grow light, which we are reviewing here.



This well-built grow light is designed to replace a 400W HPS lamp equivalent, and it does so in an energy efficient way by only actually using 185W of electricity. It has a coverage of about 4.5 feet by 3.8 feet for the vegetative stage, which decreases to about 3 feet by 2 feet for the flowering stage. It also has a veg/flower switch, enabling you to personalize light wavelengths according to the growth stage of your plants.

This LED grow light emits full spectrum light, which means it provides only wavelengths of light that are useful to your plants, so none of it goes to waste. This includes some ultraviolet and infrared too. On top of this, PlatinumLED claim that their Platinum Series lights have “the highest PAR output per Watt” compared to any LED grow light, which is a pretty big claim.

The Platinum Series 400W LED grow light has a built-in heat sink and quiet cooling fans to prevent the bulbs from overheating, and it comes with a 5-year warranty and great US-based customer service available 7 days a week.


PAR and Light Spectrum

The great thing about the Platinum Series 400W grow light is that is emits ultraviolet and infrared rays, which aren’t actually used in photosynthesis but both help the growth and yield of your marijuana plants.

Ultraviolet rays increase trichome production, leading to higher levels of THC and other cannabinoids which make your bud more potent. Infrared light helps speed up photosynthesis via the Emerson Effect, which in turn speeds up growth and increases the yield of your marijuana plants.

The Platinum Series 400W LED grow light has a relatively high PAR value, which provides great canopy penetration. It also produces less green and yellow light, which plants don’t need much of, and more blue and red light, which are the wavelengths that the plants need most to grow and produce flowers.


High Quality

The 3W LEDs on this grow light are made by US companies Bridgelux and CREE, some of the best LED manufacturers to date. PlatinumLED have also added a 90-degree secondary focusing lens, which increases the light’s range and depth. The bulbs have a guaranteed lifespan of 50,000 hours, and the chips can be easily replaced when they burn out.



The Platinum Series 400W LED grow light is made with very high quality materials, making it absolutely worth the price. The LED bulbs work quietly and coolly, and are highly energy efficient, providing your plants with exactly the kind of light they need to grow large and fast, and to produce lots of bud.

The 5-year warranty means that you can get the chips replaced easily for free, so the money you spend purchasing this light will easily be made back within the 5-year warranty. Not to mention the reduced cost of running due to the efficiency of LED technology.

All in all, a very high quality grow light well worth the price, and as long lasting as you could possibly want.