Quantum LED vs HPS: SA Electricity Cost Breakdown 2026

South Africa's electricity reality makes the LED vs HPS debate a no-brainer - but let's put real numbers behind it. At Eskom's current tariff of approximately R2.50/kWh (2026), the difference is not just about efficiency. It's about whether your grow survives Stage 6 at all.

The Electricity Cost: HPS vs Quantum LED

A 600W HPS draws 600W from the wall. A quality 240W Quantum LED produces equivalent light output (PPFD) while drawing 240W. Over an 18-hour veg cycle:

• 600W HPS (18h/day): 10.8kWh/day = R27/day = R810/month
• 240W Quantum LED (18h/day): 4.3kWh/day = R10.75/day = R322/month
• Monthly saving: R488/month
• Annual saving: R5,856/year
• LED pays for itself in under 12 months

The Load Shedding Factor - Why LED Wins in SA

A 600W HPS cannot run off a standard portable power station - it draws too much current and generates too much heat. A 240W LED can run for 2+ hours from a 500Wh portable power station, covering a full Stage 6 slot.

With a Quantum LED and a Portable Power Station, your plants never miss a light cycle. With HPS, Stage 6 means your plant sits in darkness while your competition keeps growing.

When Does HPS Still Make Sense?

HPS still makes sense in very cold climates where the heat output is useful, and for experienced growers who have run HPS for years. But for a South African grower - especially in summer, especially with load shedding - Quantum LED is the correct choice in 2026.

Shop the Quantum LED Grow Light and Portable Power Station at blomsupply.co.za for the complete load-shedding-proof grow setup.