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87490 – GEMH20-MLF-120

GE HID UltraMax™ eHID Electronic Low Frequency Ballast

• Light-weight, Low Profile Housing

• Superior low frequency square wave frequency design maximizes performance and life of ceramic metal halide lamps.

• Ultra slim can size for fixture design flexibility

Category High Intensity Discharge
Primary Application 1- 20W M156 120V High Effeciency Low Frequency Electronic HID
Ballast Type Electronic - Low Frequency
Starting Method n/a
Line Voltage Regulation (+/-) (NOM) 10 %
Ambient Temperature (MIN) 0 °F(-18 °C)
Ambient Temperature (MAX) 55 °C(131 °F)
Case Temperature (MAX) 85 °C(185 °F)
Ballast Factor Normal
Power Factor Correction Active
Circuit Type Electronic
Sound Rating A (20-24 decibels)
Enclosure Type Plastic
Distance to Lamp (MAX) 8 ft
Additional Info End of Life Protection (EOL), Inherent thermal protection
Lamp Operating Frequency (NOM) 133.0 Hz
Supply Current Frequency (MIN) 50.0 Hz
Supply Current Frequency (NOM) 60 Hz/50 Hz
Product Code 87490
Description GEMH20-MLF-120
Standard Package Case
Standard Package GTIN 10043168874905
Standard Package Quantity 12
Sales Unit Case
No Of Items Per Sales Unit 1
No Of Items Per Standard Package 12
UPC 043168874908
Case dimensions
Length (L)3.7 in (94.99 mm)
Width (W)1.6 in (39.87 mm)
Height (H)1.0 in (25.40 mm)
Mounting dimensions
Mount Length (M)3.4 in (85.34 mm)
Mount Width (X or F)1.2 in (30.22 mm)
Mount Slots (MS)0.2 in (4.31 mm)
Exit Type Side
Lead lengths Qty Exit Length (± 1 in.)
Black1Left10.0 in (254 mm)
Brown1Right10.0 in (254 mm)
Red1Right10.0 in (254 mm)
White1Left10.0 in (254 mm)
Products.Wiring Drawing

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Lamp # of Lamps Specifications by Line Voltage
M156 1   120
  System Wattage (W) 22.5
Nominal Current 0.36 A
Ballast Factor 1
Ballast Efficiency 0.889
Drop Out Voltage 96 V
Power factor (>=) % 56
Crest factor (<) 1.4
THD % (<) 79
Min. starting temperature 0 0.0 / -18
Fuse rating 3

Safety & Performance

UL Listed
Product is compliant with material restriction requirements of RoHS
ANSI - C62.41
FCC - CLASS A Non-Consumer
cUL Listed
UL 1029 Listed


  • 200C rated lead wires
  • Housing meets UL94V0 flame retardant
  • Meets IEC and ANSI requirements for power factor for Task and Downlighting
  • Short Circuit Protection
  • Do not connect brown or red wires to ground


GE Lighting warrants to the purchaser that each ballast will be free from defects in material or workmanship for period as defined in the attached documents from the date of manufacture when properly installed and under normal conditions of use.

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