{"product_id":"treegers-gb15w-led-grow-bulb-compact-full-spectrum-e27-spot-matrix","title":"Treegers - GB15W LED Grow Bulb – Compact Full-Spectrum E27 Spot Matrix","description":"\u003csection\u003e\n\u003ch3\u003eTreegers - GB15W LED Grow Bulb – Compact Full-Spectrum E27 Spot Matrix\u003c\/h3\u003e\n\u003cp\u003eBring targeted horticultural photon power directly to localized plant spaces with the Treegers GB15W LED Grow Bulb. Engineered to twist effortlessly into standard residential and commercial E27 lamp bases, this ultra-compact, commercial-grade grow bulb is an ideal solution for small-scale cultivation, cloning, and targeted over-canopy lighting. Consuming a lean 15W of wall power while putting out a strong 30 µmol\/s PPF and 1600 lumens of light, the GB15W maximizes electrical efficiency for space-conscious indoor gardeners. It features a tight 60° light distribution profile that acts like a spotlight, driving intense photon penetration down into your plant canopy without letting valuable energy escape out the sides. Built into a lightweight 150-gram chassis with fanless passive aluminum cooling, it operates silently while eliminating mechanical moving-part failures. With its IP44 splash-proof protection rating, this reliable plug-and-play bulb is perfect for maintaining clones, overwintering exotics, or boosting lower canopy growth zones.\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cstrong\u003eBest For:\u003c\/strong\u003e Individual micro-grow spaces, maintaining fresh clones and tissue cultures, supplemental lower-canopy side lighting, overwintering delicate house plants, and targeted spot-lighting for indoor vertical herb gardens.\u003c\/p\u003e\n\u003ch3\u003eKey Features \u0026amp; Technical Advancements\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eUniversal E27 Screw Base Integration:\u003c\/strong\u003e Built with a standard E27 screw base, allowing you to quickly upgrade standard domestic desk lamps, flexible goosenecks, or commercial hanging sockets into high-performance growing stations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTargeted 60° Directional Optics:\u003c\/strong\u003e Designed with a focused 60° beam angle that concentrates the light footprint directly downward. This maximizes center light intensity and depth penetration, ensuring lower leaves receive usable growing energy.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull-Spectrum GB4800K Engine:\u003c\/strong\u003e Emits a crisp, natural white light with a high 92+ CRI (Color Rendering Index) that makes it easy to visually inspect leaves for pests or deficiencies. The 4800K color temperature delivers a balanced blue-to-red ratio that keeps node stacking exceptionally tight.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltra-Compact Passive Thermal Control:\u003c\/strong\u003e Utilizes an optimized aluminum heat-sink body to dissipate heat away from the core diodes naturally. This fanless setup ensures silent operation and prevents dust buildup over long-term cycles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Efficiency \u0026amp; Power Regulation:\u003c\/strong\u003e Features a high power factor of over 90 and an ERP A++ energy efficiency rating. This high-grade internal driver handles dirty grid power smoothly while drawing minimal wattage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIP44 Moisture Protection Guard:\u003c\/strong\u003e Offers certified protection against dust entry and water splashes from any direction, making it safe to use around active hand-watering setups or inside humid propagation tents.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eProduct Technical Specifications Matrix\u003c\/h3\u003e\n\u003ctable style=\"border-collapse: collapse; width: 100%; text-align: left;\" cellpadding=\"5\" border=\"1\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #f2f2f2;\"\u003e\n\u003cth\u003ePerformance \u0026amp; Mechanical Parameters\u003c\/th\u003e\n\u003cth\u003eEngineering Metric \/ Design Detail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand \u0026amp; Product Model\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTreegers Grow Infrastructure \/ Model: GB15W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Consumption Efficiency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e15W ±5% Total Power Draw at Wall\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTotal Photosynthetic Photon Flux (PPF)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e30 µmol\/s Continuous Photon Output\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOverall Bulb Efficacy Index\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2.2 µmol\/J Horticultural Rating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRaw Luminous Flux Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1600 lm (Lumens) High-Intensity Brightness\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIntegrated Mounting Base\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStandard E27 Edison Screw Base\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eColor Temperature \u0026amp; Rendering Profile\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4800K Correlated CCT \/ +92 Ra Color Rendering Index\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOptical Beam Angle Pattern\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e60° Focused Directional Spot Projection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Electrical Interface\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100–240V Auto-Sensing Grid \/ 40–50 Hz Frequency Compatibility\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eThermal \u0026amp; Lifetime Management\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePassive Aluminum Cooling Body \/ Rated for +50,000 Hours\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBulb Structural Profile (D x H)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e64mm Diameter x 94mm Height \/ Net Weight: 150 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShipping Box Metrics \u0026amp; Mass\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e64mm x 64mm x 100mm \/ Gross Weight: 200 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGlobal Technical Compliance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCE, UKCA, SAA, C-TICK, RCM (AU\/NZ Standard Compliance)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEnergy Classification \u0026amp; Warranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eERP A++ Certified Energy Class \/ 5 Years Replacement Warranty\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eAdvanced Crop Steering \u0026amp; Environmental Optimization Tips\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHanging Height \u0026amp; Footprint Management:\u003c\/strong\u003e Due to the tight 60° directional beam angle, hanging height will dictate your light intensity footprint. For rooting clones and young seedlings, keep the bulb 30-45cm above the plant canopy to prevent light stress. For flowering ornamentals or high-light herbs, lower the bulb to 20-25cm to maximize photon penetration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRoot-Zone Substrate Coordination:\u003c\/strong\u003e Keep your small-scale root environments breathing perfectly under the GB4800K full spectrum. Plant your crops in small aeration fabric pots filled with a premium, porous 70\/30 mix of \u003cstrong\u003eCoco Coir and Horticultural Perlite\u003c\/strong\u003e. To automate small grow spaces, feed your plants using micro-drip emitters hooked up to a high-pressure \u003cstrong\u003ePlont PPH Submersible Pump\u003c\/strong\u003e on a digital cyclical timer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHandling Heat in Enclosed Spaces:\u003c\/strong\u003e Although passive aluminum cooling keeps the bulb body highly efficient, installing multiple GB15W bulbs inside a closed cabinet or tight closet can cause ambient heat to accumulate. Keep fresh air circulating by running a small, quiet USB intake fan or an active carbon exhaust fan to prevent stagnant heat pockets from stressing your leaves.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIP44 Maintenance Safeguards:\u003c\/strong\u003e The IP44 rating shields the bulb from ambient humidity and minor splashing. However, you should avoid spraying water or liquid nutrients directly onto the lens. Between crop cycles, simply turn off the power, let the aluminum shell cool down, and wipe the glass face with a clean, dry microfiber cloth to keep dust from blocking your light output.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eIdeal For (Uses)\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact Desktop \u0026amp; Shelf Micro-Grows:\u003c\/strong\u003e The perfect lighting solution for indoor kitchen herb gardens, small shelf systems, and space-conscious counter setups where a full-sized multi-bar fixture will not fit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDedicated Clonal \u0026amp; Propagation Racks:\u003c\/strong\u003e A fantastic option for nursery managers who want to hang targeted, low-wattage E27 spotlight lines over fresh cuttings, tissue cultures, and early rooting plugs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupplemental Interior Canopy Boost:\u003c\/strong\u003e Ideal for commercial growers looking to place single screw-in bulbs into dark lower-canopy blind spots, ensuring lower branch sites get enough light to maximize overall yields.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"Holland Forge","offers":[{"title":"Default Title","offer_id":48442440679524,"sku":"4381","price":39.9,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0713\/6487\/0244\/files\/ChatGPTImageMay22_2026_12_07_52AM.png?v=1779379804","url":"https:\/\/www.greenhousepolytunnels.com.au\/products\/treegers-gb15w-led-grow-bulb-compact-full-spectrum-e27-spot-matrix","provider":"Greenhouse \u0026 Polytunnels","version":"1.0","type":"link"}