Megalight: 2 DOE certified models
Megalight has 2 basic models certified to DOE as of 2026-11-03: 1 dehumidifier (49.43 pints/day under the 2019 DOE test) and 1 air purifier (smoke CADR 136 cfm). One is the same unit as models filed under other brands. How their efficiency compares with their DOE class is below.
Source: DOE Compliance Certification Database (dehumidifiers, air purifiers), data as of 2026-11-03.
Dehumidifiers
| # | Photo | Model | Labels | Pints/day (2019 test) | IEF, L/kWh | DOE class | Brands |
|---|---|---|---|---|---|---|---|
| 1 | MegalightPD- |
| 49.43pints/day, 2019 DOE test | 2.2 | 25 to 50 | 2 |
Air purifiers
| # | Photo | Model | Labels | Smoke CADR, cfm | Room size | PM2.5 CADR | CADR/W | Brands |
|---|---|---|---|---|---|---|---|---|
| 1 | MegalightAP- |
| 136cfm, 211 sq ft | 211 sq ft | 137 | 9.1 | 1 |
How efficient are Megalight models?
Dehumidifiers
Megalight PD-HPC750-WT files IEF 2.2 L/kWh. The median among the 296 models in its DOE class (portable dehumidifiers, 25 to 50 pints/day) is 1.91, so it's above the median: higher than 293 of the 296.
Air purifiers
Megalight AP-HCE99-WT files CADR/W 9.1. The median among the 66 models in its DOE class (air purifiers, PM2.5 CADR 100 to 149 cfm) is 4.65, so it's above the median: higher than 64 of the 66.
A higher IEF means more water removed per kWh. A higher CADR/W means more clean air per watt.
Who makes Megalight dehumidifiers and air purifiers?
DOE's database has no manufacturer field, so the evidence is whose model number each unit is filed under and which other brands file the same unit.
Megalight shares one unit with one other brand, waykar. Its other basic model is filed by Megalight alone.
| Basic model | Megalight model | Number belongs to | Brands |
|---|---|---|---|
| DFH1- | PD- | No known prefix | 2 |
How much do Megalight models cost to run?
Megalight PD-HPC750-WT certifies 49.43 pints/day (23.39 liters) at an IEF of 2.2 L/kWh. That takes 10.63 kWh a day running nonstop at DOE's test conditions: about $1.93 a day, or $57.92 for 30 days.
For Megalight AP-HCE99-WT, DOE's record lists 89 kWh a year, the annual energy figure from DOE's test. That's about $16.16 a year.
Real use cycles on and off with the humidity, so that's the upper figure for a day of nonstop running.
At 18.16¢ per kWh, the US average residential price for August 2026 (EIA Electric Power Monthly, table 5.6.A). Worked out from the certified figures.
How does Megalight AP-HCE99-WT compare with other brands?
Picked by rule from models with a matched listing, DOE data as of 2026-11-03.
- Within 20 cfm of its size, highest CADR/W: AROEVE DH-JH021US-A00, 138 cfm. Room size 214 sq ft, CADR/W 8.
- Nearest bigger unit: Dreo DR-HAP009S, 158 cfm. Room size 245 sq ft, CADR/W 6.
Questions about Megalight
- Is Megalight a good dehumidifier brand?
- Its one dehumidifier basic model, Megalight PD-HPC750-WT, certifies 49.43 pints/day under the 2019 DOE test, and its IEF of 2.2 is higher than 293 of the 296 in its DOE class (portable dehumidifiers, 25 to 50 pints/day). It's the same unit as another brand's model. We don't test reliability, noise or build quality, so we can't rank brands on those. How we compare models.
- Does Megalight make a 50 pint dehumidifier?
- No current DOE record shows one as of 2026-11-03. Its one model, Megalight PD-HPC750-WT, certifies 49.43 pints/day under the 2019 DOE test. Boxes that quote the older 80°F test read higher for the same unit. How the 2019 test changed pint ratings.
- Is Megalight the same as waykar?
- For one unit, yes: both file it under the same DOE basic model (DFH1-50EPD(04)). The other Megalight basic model isn't filed by waykar. Compare the 2 brands of DFH1-50EPD(04).