E-ballast

M-ballast

Power factor

≥0.99

40%～80%

Power loss

3%～4%

12%～18%

Energy saving

30％

Frequency

≤30kHz,anti-glaring

Low,flickering

Range of voltage

160V～260V

200V～240V

luminous efficacy

1.10

0.95～0.98

Self-protection

Multi

None

Dimmer function

Yes

No

Dimension/weight

Compact/Small

Bulky

Hum sound

None

Noisy

Crest? factor

≤1.4

1.50—1.55

THD

≤10％

30%--37%

Life span of bulb

1.5times

shorten the bulb life