70

72

74

76

78

80

82

84

86

88

90

92

10%

20%

30%

40%

50%

60%

70%

80%

90% 100%

277VAC

230VAC

115VAC

0 .8 5

0 .8 6

0 .8 7

0 .8 8

0 .8 9

0 .9

0 .9 1

0 .9 2

0 .9 3

0 .9 4

0 .9 5

0 .9 6

0 .9 7

0 .9 8

0 .9 9

1

5 0 %

6 0 %

7 0 %

8 0 %

9 0 %

1 0 0 %

2 7 7 V A C

2 3 0 V A C

1 1 5 V A C

TherearetwomajorkindsofLEDdrivemethod"directdrive"and"withLEDdriver".

TypicalLEDpowersupplyI-Vcurve

A typicalLEDpowersupplymayeitherworkin"constantvoltagemode(CV)orconstantcurrentmode(CC)"todrivetheLEDs.

Mean Well's LED power supply with CV+ CC characteristic can be operated at both CV mode (with LED driver, at area (A) and CC mode (direct drive, at area (B).

DRIVINGMETHODSOFLEDMODULE

100

60

50

95

(max.)

Io (%)

Constant

Voltage area

Constant

Current area

Hiccup

Protection

(A)

(B)

(C)

HLG-40Hseriespossesssuperiorworkingefficiencythatupto89.5%canbereachedinfieldapplications.

EFFICIENCY vsLOAD(48VModel)

PowerFactorCharacteristic

LOAD

LOAD

ConstantCurrentMode

(40W)

40WSingleOutputSwitchingPowerSupply

FileName:HLP-40H-SPEC 2012-03-01