This collection covers classic grow room lighting and everything around it: HPS lamps from Philips, Platinum and GE, complete HPS fixtures and kits, UV supplements, plus the accessories that keep a lighting setup safe and efficient. Looking for LED instead? Head to our LED grow lights.
HPS, UV and the right wattage
High-pressure sodium lamps are a proven choice for flowering thanks to their warm, red-heavy spectrum. A 600W lamp is a common pick for a 100x100 or 120x120 tent; 1000W suits larger rooms with plenty of extraction. Remember that HPS produces noticeable heat, so plan your ventilation alongside it. UV fixtures from LUXELITE and Hortimol are used as a supplement to a main light, not as the only source.
Ballasts, reflectors and control
Every HPS lamp needs a matching ballast: electronic models run cooler and are often dimmable, while magnetic ballasts are simple and robust. A good reflector spreads the light evenly over your canopy, and timers or controllers from Platinum, Lumen King and Cli-Mate keep your day and night cycles consistent. Browse all parts in lighting accessories or start with HPS lamps. Not sure what fits your space? Our guide on choosing the right grow lamp helps you decide.
Questions & answers about Lighting
All growing questions →- Lighting How many watts of LED do I need per square metre? For flowering, plan on roughly 250-400 W of real power draw per m². Check what the lamp actually pulls from the wall, not the 'equivalent... Read the answer →
- Lighting How high should I hang my LED above the plants? Follow the manufacturer's chart. For many 200-400 W panels it is roughly 30-60 cm above the canopy, and stronger lamps hang higher. Read the answer →
- Lighting How many hours of light do plants need in veg and in flower? Photoperiod plants usually get 18 hours on and 6 off in veg, then 12 on and 12 off to flower. Autoflowering plants can stay on 18/6 or up... Read the answer →
- Lighting LED or HPS: which grow light is better? LED, for most people with a tent. It's more efficient, makes less heat and the diodes last years. HPS costs less to buy but needs more ve... Read the answer →
