Fixed down means exactly that: this Tivah has no tilt and no swivel, and the beam leaves the fitting straight at the ground. It is the version to specify when the aiming is not a decision worth leaving on site a row of them down a driveway wall lands identical scallops without anyone climbing a ladder to match them, and nothing gets nudged out of alignment later.

Solid brass, and why the impact rating matters here

The body is solid brass rather than a brass-coloured coating, so there is no film to chip. Havit rates it IK10, which is the top of the impact scale relevant on a fixed-down fitting because they are usually mounted low, on driveway walls, carport columns and garden steps, where a wheelbarrow or a car door finds them. The lens is clear glass rather than a diffuser, which is what keeps the beam defined instead of scattering it.

The three part numbers

• HV1155T 240V GU10 with the 9-in-1 switchable globe: 240560lm at 3000K, 255595lm at 4000K and 270630lm at 5500K as it is stepped through 3W, 5W and 7W, in a 60 beam. Triac dimmable.
• HV1157GU10T 240V GU10 fixed at 5W: 270lm, 285lm, 300lm, in a 120 beam.
• HV1157MR16T identical output on 12V DC MR16, needing an external supply.

On a fixed-down fitting the beam angle does most of the design work. The 60 globe drops a tight bright disc directly below; the 120 globe spreads a soft wash that overlaps between fittings. If you are lighting a path for walking on, the wider one is usually the right answer; if you want defined pools, take the narrower.

Electrical detail

The GU10 versions are Class1 and require an earth. The MR16 version is Class3 low voltage, needs no earth, and requires an external 12V DC driver sited within 25m with the supply held inside 5% of nominal. Globes are replaceable to a ceiling of 35W on GU10 and 20W on MR16. Havit quotes CRI above 80, colour consistency inside 6 SDCM and glare below UGR 45, with lamp life over 30,000 hours. IP65 covers full weather exposure. The warranty is 3 years replacement. Order from Lights For You and we will flag if the run you are planning needs a bigger driver than the one you have specified.

Questions

Can this one be aimed?

No. It is the fixed-down version and points straight down by design. If you need to aim the beam, the single adjustable Tivah is the same fitting with 90 tilt and 270 swivel.

What does IK10 mean in practice?

It is the highest impact rating in the scale. On a fitting mounted low on a driveway wall or carport column, that is the difference between a knock and a replacement.

Which version can be dimmed?

HV1155T, on a Triac dimmer. The fixed 5 W GU10 and MR16 versions are not dimmable with the globes supplied.

Does the MR16 version need an earth?

No. It is Class 3 low voltage. The two GU10 versions are Class 1 and do require an earth.

How long do the globes last?

Havit quotes lamp expectancy over 30,000 hours. They are replaceable GU10 or MR16 globes, so the fitting outlasts them.

Which beam angle should I choose?

60 for defined pools of light directly below the fitting, 120 for a wash that overlaps between fittings along a wall or path.

Is the brass coated?

No, it is solid brass. There is no coating to chip, and the surface weathers rather than failing.