Which is brighter, the Morimoto XB or the Diode Dynamics 5000K?

Diode Dynamics publishes 3200 lumens per bulb; Morimoto publishes no lumen figure. Morimoto claims output close to Osram CBI at 5500K, but without a number you cannot compare directly.

Morimoto rates the XB at 2500 hours and says it holds 83% of intensity after 200 hours. Diode Dynamics publishes no rated life, so the Morimoto has the only verifiable longevity claim.

Is the Diode Dynamics pair worth the extra $37.95?

Only if you want a stated lumen figure, a ceramic base, and lab-measured color. If you just need a working 5000K D2R pair, the Morimoto at $22.00 does the job for less.

Will either work with my stock ballasts?

Morimoto supports 35W and 55W ballasts. Diode Dynamics lists 9-16V OEM ballasts with a plug-and-play connector. Both are direct D2R replacements, but check your ballast wattage first.

Do both meet DOT and SAE rules?

Yes. Morimoto says the XB meets or exceeds SAE, DOT and ECE requirements. Diode Dynamics says its bulbs are DOT/SAE and ECE compliant for arc position and size.

Which has better color?

Both are 5000K. Diode Dynamics measures color in a photometric lab and promises no green or purple tint. Morimoto describes its 5000K as close to Osram CBI.

Morimoto D2R XB 35W HID Bulbs 5000K vs Diode Dynamics HID Bulb D2R 5000K (Pair)

Buy the Morimoto XB pair if you want the lowest price and proven output; at $22.00 at eBay as of November 5, 2026, it costs less than half the Diode Dynamics pair at $59.95 at Octane Lighting. Buy the Diode Dynamics pair if you want a documented 3200 lumens per bulb, a ceramic base, and a stated DOT/SAE and ECE arc-position spec. Both are 5000K D2R HID pairs; the Morimoto is the value pick, the Diode Dynamics is the spec-sheet pick.

Today the Diode Dynamics HID Bulb D2R 5000K (Pair) costs $25.00 less at its best price.

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