The Single Bulbs model include: H1, H3, H4, H7, H8, H9, H10, H11, H13, 9004 (HB1), 9005 (HB3), 9006 (HB4), 9007 (HB5), 880,881,889,890,892, D2S, D2R, D2C

Color Temperature:3000K.4300K.6000K,8000k.10000K.12000K

So you can choose any type at the same price, and any color temperature

The 45W bulb is more light than the 35 one, can be compatible with 45W ballast, 50W ballaast, 55W ballast, when you order the 45W bulb here, to achieve better effect,  we suggest you order the 50W bulb