What LED wattage replaces your current metal halide, HPS, or fluorescent fixture? Complete conversion chart with lumen output, energy savings, and recommended products.
💡 Quick rule: Multiply your current wattage (including ballast) by 0.35-0.45 for the LED equivalent.
| Current Fixture | Actual Draw | LED Replacement | LED Lumens | Savings |
|---|---|---|---|---|
| 1500W Metal Halide | 1575-1650W (with ballast) | 500-600W LED | 75,000-90,000 lm | 63-67% |
| 1000W Metal Halide | 1080-1100W (with ballast) | 300-400W LED | 45,000-60,000 lm | 63-70% |
| 750W Metal Halide | 810-825W (with ballast) | 240-300W LED | 36,000-45,000 lm | 64-70% |
| 400W Metal Halide | 458-460W (with ballast) | 150-200W LED | 22,500-30,000 lm | 57-67% |
| 250W Metal Halide | 288-295W (with ballast) | 100-120W LED | 15,000-18,000 lm | 59-65% |
| 175W Metal Halide | 210-215W (with ballast) | 60-80W LED | 9,000-12,000 lm | 63-71% |
| 150W Metal Halide | 185-190W (with ballast) | 50-60W LED | 7,500-9,000 lm | 68-73% |
| 100W Metal Halide | 125-130W (with ballast) | 30-40W LED | 4,500-6,000 lm | 69-76% |
| 70W Metal Halide | 95-100W (with ballast) | 20-30W LED | 3,000-4,500 lm | 70-79% |
| Current Fixture | Actual Draw | LED Replacement | LED Lumens | Savings |
|---|---|---|---|---|
| 1000W HPS | 1100W (with ballast) | 300-400W LED | 45,000-60,000 lm | 64-73% |
| 400W HPS | 465W (with ballast) | 150-200W LED | 22,500-30,000 lm | 57-68% |
| 250W HPS | 295W (with ballast) | 100-120W LED | 15,000-18,000 lm | 59-66% |
| 150W HPS | 185W (with ballast) | 50-70W LED | 7,500-10,500 lm | 62-73% |
| 100W HPS | 130W (with ballast) | 30-45W LED | 4,500-6,750 lm | 65-77% |
| 70W HPS | 95W (with ballast) | 20-30W LED | 3,000-4,500 lm | 68-79% |
| Current Fixture | Actual Draw | LED Replacement | LED Lumens | Savings |
|---|---|---|---|---|
| 4-Lamp T8 (128W) | 128W (4×32W) | 40-50W LED Troffer | 5,000-6,500 lm | 61-69% |
| 3-Lamp T8 (96W) | 96W (3×32W) | 30-40W LED Troffer | 3,750-5,000 lm | 58-69% |
| 2-Lamp T8 (64W) | 64W (2×32W) | 20-30W LED Troffer | 2,500-3,750 lm | 53-69% |
| 4-Lamp T12 (160W) | 160W (4×40W) | 40-50W LED Troffer | 5,000-6,500 lm | 69-75% |
| 2-Lamp T5HO (116W) | 116W (2×54W + ballast) | 80-100W LED Linear High Bay | 12,000-15,000 lm | 14-31% |
| 4-Lamp T5HO (232W) | 232W (4×54W + ballast) | 150W LED Linear High Bay | 22,500 lm | 35% |
| 8ft T12 (75W) | 75W single lamp | 36-40W LED Strip | 4,500-5,000 lm | 47-52% |
A 150-200W LED fixture replaces a 400W metal halide (which actually draws 458-460W with ballast). The LED produces 22,500-30,000 lumens at 130-150+ lm/W efficacy, matching or exceeding the usable light output of the metal halide. Energy savings: 57-67%. Typical payback: 6-18 months with utility rebates.
A 300-400W LED replaces a 1000W metal halide (1080-1100W with ballast). This provides 45,000-60,000 lumens — sufficient for large parking lots and high-mast applications. Energy savings: 63-70%. The LED also eliminates the 15-minute MH warm-up and restrike delay.
A 150-200W LED replaces a 400W HPS (465W with ballast). LED provides 22,500-30,000 lumens with CRI 70-80+ compared to HPS CRI of 22. The LED also eliminates the orange color cast of HPS, dramatically improving visibility and safety. Energy savings: 57-68%.
A 40-50W LED troffer replaces a 128W 4-lamp T8 fluorescent fixture. The LED produces 5,000-6,500 lumens with better uniformity and no flicker. Options include full fixture replacement or retrofit kits. Energy savings: 61-69%. LED troffers also eliminate ballast hum and mercury disposal concerns.
Full fixture replacement is recommended for best results. LED fixtures are optically designed for directional LED output, while retrofit kits adapt LED to housings designed for omnidirectional lamps, losing 20-40% efficiency. Full replacement also qualifies for higher DLC rebates and provides a complete warranty.
Multiply your current fixture wattage (including ballast) by 0.35-0.45 for the approximate LED equivalent. Example: 400W MH × 0.40 = 160W LED. This factor works because LED efficacy (130-200 lm/W) is roughly 2.5× that of MH (80-100 lm/W) after accounting for directional efficiency and lumen maintenance.