Retrofitting 400W HID

This is probably the most common HID light on the market, the 400W HID (MetalHalide or HPS) bulb. It's not hard to find this fixture in a commercial or industrial facility. Along with their associated ballasts, these lights consume around 455 Watts every time they are turned on. Want to learn how to save 75% or more?

Replacing 400W HID with a LED 100W RetrofitKit

So what is a 100W RetrofitKit? It is essentially a kit containing everything to replace the HID bulb and ballast in an existing fixture. Using your existing fixture, we basically take all the guts out of it (bulb, ballast, reflector and socket). To replace 400W HID, we recommend our LED 100W Retrofit.

Our Kit includes the LED Head and all the brackets to install the head into the existing fixture. In the above photo, you see one installed in a canopy light. These lights are found in garages and indoor parking areas. In this photo you can see all the parts included the kit: the LED Head, the LED Driver and the mounting bracket for the head.

Installing a RetrofitKit is quick and painless:
1. remove the bulb.
2. remove the ballast
3. remove the reflector (you won't need it as LED light is directional)
4. remove the socket that held the old HID bulb.

Once the fixture is gutted, figure out what mounting option works best. There are many options. Mount the driver where the old ballast was located and wire it to the input wires of the fixture. Install the head onto the mounting bracket, and hook up the drivers red and black wires to the LED Heads red and black wires.

Clean the lens, close the fixture. Turn on the light.

Energy Savings: 100W LED versus 400W HID

Below is a chart showing how much you can save, per fixture, converting from 400W HID to 100W LED. This assumes 12 hours a day operation, 365 days a year.

100 LED Watts replacing 400 Watts for 12 hrs/day 365 days/yr saving 1577 kw/year *
Cost per kw/h Savings per year
.06 $95
.08 $126
.10 $158
.12 $189
.14 $221
.16 $252
.18 $284
.20 $315
* includes ballast draw

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